Edwin's solution:
Remove the parentheses by multiplying the
by both terms inside the parentheses
Combine the x and the 5x as 6x
Combine the +2 and the -5 as -3.
Add -7x to both sides
Combine the 6x and the -7x as -x
Combine the 7x and the -7x as 0, so you don't bother
writing 0, you just erase the 7x and the -7x
Add 3 to both sides:
The -3 and the +3 cancel on the left.
Combine 3+3 as 6
Write the coefficient of x as -1:
Divide both sides by the coefficient -1:
Cancel the -1's on the left and do the
division on the right:
Edwin