Question

Como resolver essa inequação 2(x+6)-4(x -2) < -7x

Answer 1

2(x+6) -4(x-2) < -7x
2x +12 -4x +8 < -7x
2x -4x +7x < -12 -8
2x +3x < -20
5x < -20
x < -20/5
x < -4