Question

equação:

A)9×+2=7×
B)3×-1=5×

é urgente!!!!​

Answer 1

A)9x+2=7x

9x-7x=-2

2x=-2

x=-2/2

B)3x-1=5x

3x-5x=1

-2x=1

x=1/-2

Answer 2

A)

9x + 2 = 7x

9x - 7x = -2

2x = -2

x = -2/2

x = -1

B)

3x - 1 = 5x

3x - 5x = 1

-2x = 1

x = 1/-2

x = -0,5

C)

11x + 17 = 10x + 13

11x - 10x = 13 - 17

x = -4

D)

3x - 11 = x - 11

3x - x = -11 + 11

2x = 0

x = 0/2

x = 0

E)

x + 7x - 2x = 96 + 2x

x + 7x - 2x - 2x = 96

4x = 96

x = 96/4

x = 24