Question

Resolva as inequações
4(x-1)-2(3x+1)<7

9(x-2)<-5(x-3)+1

Answer 1

Resposta:

a) x > 6,5

b) x < $\dfrac{17}{7}$

Explicação passo-a-passo:

a) $4(x-1)-2(3x+1)<7$

$4x-4-6x-2<7\\-2x-6<7\\-2x<7+6\\-2x<13\\-x<\frac{13}{2} \\x>6,5$

b) $9(x-2)<-5(x-3)+1$

$9x-18<-5x+15+1\\9x+5x<16+18\\14x<34\\x<\frac{34}{14}\\x<\frac{17}{7}$