Question

PORFAVOR EXPLIQUEMA RESPOSTA

A) 2× -5=×+1
B) 4×-10=2×+2
C) 2×+3=×+4
D) 4×-7=8×-2
E) 2×+1=4×-7

Answer 1

Explicação passo-a-passo:

A) 2× -5=×+1

2x - x = 1 + 5

x = 6

B) 4×-10=2×+2

4x - 2x = 2 + 10

2x = 12

x = 12/2

x = 6

C) 2×+3=×+4

2x - x = 4 - 3

x = 1

D) 4×-7=8×-2

4x - 8x = - 2 + 7

- 4x = 5 (-1)

4x = - 5

x = - 5/4

x= - 1,25

E) 2×+1=4×-7

2x - 4x = - 7 - 1

- 2x = - 8 (-1)

2x = 8

x = 8/2

x = 4

ESPERO TER CONTRIBUÍDO!!!