Question

me ajudem pfvr
a ) 17×+2=10+5×
b) 5(2×-4)=7(×+1)-3
c) 4(×-3)=2×-5
d) 7 (×-2)=5(×+3)
e) 3(2×-1)=2×-5
f) -3×+10=2×+9
g ) -2(5×+3)=-6(4×+2)
h ) 360+36=30×
i ) 3 (×-2) = 4 (-1×+3)
j ) 5×+9 = -3× -15​

Answer 1

Explicação passo-a-passo:

A) 17x - 5x =10-2

12x=8

x=8÷12

x=0,66

B) 5 (2x-4)= 7 (x+1)-3 (chuveirinho)

10x-20=7x+7-3

10x-7x=7-3+20

3x=24

x=24÷3

x=8

C)

4x-12= 2x-5

4x-2x=-5+12

2x=7

x=7÷2

x=3,5

D)

7X-14=5x+15

7x-5x=15-14

2x=1

x=1÷2

x=0,5