First, we expand out the bracket.
`5 - (x + 2) = 5x``5 - x - 2 = 5x `
`3 - x = 5x`
Now we recognise that it is easier to get all the x's on the right side, by adding x to both sides :
`3 = 6x`
Now I divide both sides by 6 and swap the sides:
`x = 0.5.`
We check our answer in both sides of the equation. If it works, it must be the right answer.
LHS = `5 - (0.5 + 2) = 2.5`
RHS = `5 xx 0.5 = 2.5` = LHS.
Get the Daily Math Tweet!
IntMath on Twitter