Question

Quanto vale o "x" de 7x +8<2x -7 URGENTE

Answer 1

7x+8<2x-7
7x-2x<-7-8
5x< -15
x< -15/5
x< -3

Answer 2

7x + 8 < 2x - 7
7x - 2x < -7 - 8
       5x < - 15
         x < -15/5 --> x < -3