Question

A) 4(X-3)=2X-5

B) 4(X+3)=1

C) 5(2X4)=2(X+1)

D) 5(X+1)=6(X+2)

E) 4(X+2)=3(X+3)

​

Answer 1

CÁLCULOS:

A)

4 • (x - 3) = 2x - 5

4x - 12 = 2x - 5

4x - 2x = - 5 + 12

2x = 7

x = 7 ÷ 2

x = 7/2

x = 7/2OU

x = 7/2OUx = 3,5

B)

4 • (x + 3) = 1

4x + 12 = 1

4x = 1 - 12

4x = - 11

x = - 11 ÷ 4

x = - 11/4

x = - 11/4OU

x = - 11/4OUx = - 5,5

C)

5 • (2x + 4) = 2 • (x + 1)

10 x + 20 = 2x + 2

10x - 2x = 2 - 20

8x = - 18

x = - 18 ÷ 8

x = - 18/8

x = - 18/8OU

x = - 18/8OUx = - 2,25

D)

5 • (x + 1) = 6 • (x + 2)

5x + 5 = 6x + 12

5x - 6x = 12 - 5

- x = 7

x = 7 ÷ (- 1)

x = - 7

E)

4 • (x + 2) = 3 • (x + 3)

4x + 8 = 3x + 9

4x - 3x = 9 - 8

x = 1