Question

resolva as inequacoes de 7x-8<11x+7

Answer 1

7x - 8 < 11x +7
7x- 11x < 7 +8
-4x <15       x(-1)  
 
Ao multiplicar por -1 o sinal de menor mudar pra maior

4x > -15
x > -15/4
x> -3,75

Answer 2

7x-8<11x+7

-8 < 11x + 7 - 7x

-8 < 4x + 7

-8 -7 < 4x

-15 < 4x = -15/4 < x

x > -15/4