Question

A) x+9=18


B) x-1= -8


C) 3Y-8 = 13​

Answer 1

Olá

A)

$\LARGE{}x + 9 = 18 \\ \LARGE{}x = 18 - 9 \\ {\large\boxed{\boxed{  { \large \red{ \tt x = 9}}}}}$

B)

$\LARGE{}x - 1 = - 8 \\ \LARGE{}x = -8 + 1 \\ {\large\boxed{\boxed{  { \red{\large \tt x = - 7 }}}}}$

C)

$\LARGE{}3y - 8 = 13 \\ \LARGE{}3y = 13 + 8 \\ \LARGE{}3y = 21 \\ \\ \LARGE{}y = \frac{21}{3} \\ \\ {\large\boxed{\boxed{  { \red{\large \tt y = 7}}}}}$

${\large\boxed{\boxed{  { \large \tt BONS \: \: ESTUDOS \: MEU \: ANJO \:<3 }}}}$