Solving (linear) equations with brackets
Solving an equation with brackets follows a similar process to solving simple twostep linear equations. It is important to remember that if we see a number outside a bracket, this means that everything inside the bracket is multiplied by this number.
If the number outside the bracket is a factor (divides exactly into) the number on the opposite side of the equation, we can just divide the whole equation by this number. For example, in the equation 3(x + 1) = 12, we could just divide both sides by 3 to get x + 1 = 4, which is then easily solved using strategies we already know. Alternatively, we could expand the brackets first to get 3x + 3 = 12, which we would then solve like a normal twostep linear equation. Either method will always work; however, using division first can get a little tricky when the numbers do not divide exactly. 
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