Question

GENTE, AJUDEM, POR FAVOR, É URGENTE

1 - Resolva as questões

a) 9x - 2 = 4x + 18
b) 2x - 10 + 7x + 10 = 180
c) 10 = x + 8
d)7y - 10 = y + 50
e) 4 = x - 10
f) 4x - 18 + 3x = 10

Answer 1

A) 9x-2=4x+18
9x-4x=+2+18
5x=20
X= 20/5
X=4

B) 2x-10+7x+10=180
2x+7x=180+10-10
9x=180
X= 180/9
X= 20

C) 10= x+8
-x=-10+8
-x= -2

D) 7y-10=y+50
7y-y=50+10
6y=60
Y=10

E) 4=x-10
-x=-4-10
-x=-14

F) 4x-18+3x=10
4x+3x=10-18
7x=-8
X=-8/7
X= 1,14