What value of x makes the equation true? 4 - (2a +3) = -3 (a - 1) + 31
Just write the numerical value

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 - The turns into because you have to find the opposite or the terms. So this just means, if something is positive: it turns negative, and if something it negative: it turns positive.  

Equation at the end of Step 1:

 - We do this to get rid of/cancel out the 3. Since when we get to the equation we need 1 number and variable so to do this, you just do the opposite of what you see. In this case the 3 is positive, so you subtract 3 on each side. However you only subtract the 3 on the right side.

Equation at the end of Step 2:

 - We do this because we need to make the Left side smaller, and since there are parenthesis you must do them first. So with parenthesis you just multiply the numbers/variables by the outside number/variable.

Equation at the end of Step 3:

 - We do this since both numbers don't have any variables attached to them, you can just combine them by adding.

Equation at the end of Step 4:

 - We do this because you only need 1 variable at the end of the equation, so to get the 1, you just combine them.

Equation at the end of Step 5:

 - We do this to get 1 number and variable left. To do so you do the opposite of what you see: In this case we have a positive 1, so you subtract 1 on each side.

So your answer is .

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