Question

Resolva as equações
A)3x+10= -7x+10
B) 3.(x-2)=x+9
C)5x -8=10-c
D) 3. (X-2)=2. (-2x+11)

Gente preciso urgente e com os cálculos ingual fazemos no caderno pfv gente

Answer 1

A) 3×+7×=10-10

10×=0

×=0÷10

×=0

B)3(×-2)=×+9

3×-6=×+9

3×-×=9+6

2×=15

×=15÷2

×=7.5

C)5×+×=10+8

6×=18

×=18÷6

×=3

D)3(×-2)=2(-2×+11)

3×-6=-4×+22

3×+4×=22+6

7×=28

×=28÷7

×=4