Rearranging Equations Gcse Maths Steps Examples Multiply each side of the equation by the denominator. show step. expand the bracket on the left hand side of the equation. this will help us get all terms with x onto one side of the equation. show step. if we factorise the left side of the equation we will be left with only one of the variable x. show step. For example, rearrange the formula to make x the subject. \frac{5}{x}=2y . we need to multiply both sides of the equals sign by the denominator of the fraction x, and then use inverse operations to divide everything by 2y. step by step guide: equations with fractions.
Rearranging Equations Gcse Maths Steps Examples Worksheet If we want to rearrange the equation y = 5x 7 to make x the subject of the equation, we need to isolate x. the equation would now begin with x = . in this example, rearranging to make x the subject of the equation would result in x = (y – 7) ÷ 5. if you’re confused so far, don’t worry – we have plenty of examples to show how we. To make a different letter the subject, we need to rearrange the formula. this is also called changing the subject. the method is as follows: first, remove any fractions. multiply both sides by the lowest common denominator. then use inverse (opposite) operations to get the variable on its own. this is similar to solving equations. The formula for the surface area, \ (a\), of a closed box is given by: \ (a = 2wb 2wh 2bh\) rearrange this formula to make \ (b\) the subject. show answer. hide answer. if a formula has two. Step 1: multiply each side of the equation by the denominator. step 2: expand the bracket on the left hand side of the equation and rearrange the equation. this will help us to get all terms with x x onto one side of the equation. step 3: factorise the left side of the equation so we have a single variable x. x.
Rearranging Equations Cazoom Maths Worksheets The formula for the surface area, \ (a\), of a closed box is given by: \ (a = 2wb 2wh 2bh\) rearrange this formula to make \ (b\) the subject. show answer. hide answer. if a formula has two. Step 1: multiply each side of the equation by the denominator. step 2: expand the bracket on the left hand side of the equation and rearrange the equation. this will help us to get all terms with x x onto one side of the equation. step 3: factorise the left side of the equation so we have a single variable x. x. For example, if we are asked to rearrange the formula for the area of a circle to make r the subject. firstly, recall that the formula for the area of a circle is, a=\pi \textcolor{blue}{r^2} example: for the equation a=\pi \textcolor{blue}{r^2}, make \textcolor{blue}{r} the subject. step 1: dividing both sides of the equation by \pi, we get,. This video covers how rearrange formulas to make a particular variable (letter) the subject. for example 'rearrange y = 3x 4 to make x the subject'. this v.
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