Question

A) (3x + 4)/5 = 2


B) x+18 5 =5


C) (3x - 3)/8 = 3



Me ajuda pfv é pra hoje!.

Answer 1

A) $\frac{3x+4}{5}=2$

$3x+4=2\cdot 5$

$3x+4=10$

$3x=10-4$

$3x=6$

$x=\frac{6}{3}$

$x=2$

B) $\frac{x+18}{5}=5$

$x+18=5\cdot 5$

$x+18=25$

$x=25-18$

$x=7$

C) $\frac{3x-3}{8}=3$

$3x-3=3\cdot 8$

$3x-3=24$

$3x=24+3$

$3x=27$

$x=\frac{27}{3}$

$x=9$