First, expand by multiplying 33 by every term in the brackets. Then group together the terms with xx in them and group the terms without xxs in them together.
Finally, divide the number in front of the xx by the number on the other side to solve for xx.
3 (2x + 3x + 2) = -4x + 1243(2x+3x+2)=−4x+124
3*2x + 3*3x + 3*2 = -4x + 1243⋅2x+3⋅3x+3⋅2=−4x+124
6x + 9x + 6 = -4x + 1246x+9x+6=−4x+124
15x + 6 = -4x + 12415x+6=−4x+124
15x + 4x = 124 - 615x+4x=124−6
19x = 11819x=118
x = 118/19 = 6.21x=11819=6.21