Question

Como fazer? A) 3 (×-1)-2 (×-3)=10
B) 2 (×-6)=-3 (5+×)
C)3 (×+10)-2 (×-5)=0
D)3 (×-1)-2 (×-4)=1
E)7 (×-1)-2 (×-5)=-5
F) 2 (×+1)=3 (2-×)
Mim ajudem por favor

Answer 1

A)3x - 3 - 2x + 6 = 10

3x - 2x = 10 + 3 - 6

x = 7

b)2(x-6)= -3(5+x)

2x -12= -15-3x

2x +3x= -15+12

5x= -3

x= -3/5

C)3(x+10) -2 (x-5)= 0

3x + 30 - 2x + 10 = 0

3x - 2x = - 30 - 10  

x = - 40

D) 3x-3-2x-8=1

3x-2x=1+3+8

1x=12

x=12/1

x=12

e)7X-7-2X+10=X-5

7x-2x-x=+7-10-5

4x=-8

x=-8/4

x=-2

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

2x + 2 = 6 - 3x

2x + 3x = 6 - 2

5x = 4

x = 4 / 5

x = 0,8