Question

resolva as questões abaixo

e) 6 - 2(x + 2)=x - 10
f) 3 (2x - 3) + 2(x + 1)= 3x +18
g) 3x - 2x + 10 = 10+ 5x -40
h) 5y - 3 = 2y + 9
i) 2a + 6 = a + 18​

Answer 1

Resposta:

e) 6 - 2(x + 2)=x - 10

6-2x-4=x-10

-3x= -12

x= 4

f) 3 (2x - 3) + 2(x + 1)= 3x +18

6x -9+2x+2=3x+18

5x= 25

x=5

g) 3x - 2x + 10 = 10+ 5x -40

-4x= -40

x= 10

h) 5y - 3 = 2y + 9

3y= 12

y=4

i) 2a + 6 = a + 18

2a-a= 18-6

a=12