Answer:
=g-1(4)
Step-by-step explanation:
x=3y+8 ---> y=
y=

Answer:
0.4

Step-by-step explanation:
Olá!
(2x - 6) + (x+ 10) + (2x + 1) = 180
2x - 6 + x + 10 + 2x + 1 = 180
2x + x + 2x = 180 + 6 - 10 - 1
5x = 175
x = 35
Answer:
54
Step-by-step explanation:
90+36= 126
180-126= 54