Solve 2x + 7 = 13

In this question we are as to solve this equation and therefore find the value of x. This means we need to isolate x to find a value for it. To do this we use the reverse rules for BIDMAS whereby the first step would be takeaway 7 from both sides of the equation. This leaves you with 2x = 6. We now move onto division. Both sides of the equation need to be divided by 2 allowing the x to be isolated. This will leave you with x = 3 which is your final solution.  

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5x+3=2x+9 What is the value of x?


Write 0.2(54) as a fraction in its simplest form. (Where 0.2(54) = 0.254545454...)


Solve this simultaneous equation: 5n+t= 21 n-3t=9


Make r the subject of the formula x = (3r - 4)/5