Question

-5x - (-7 - 4x)= -2(3x - 4)


i need the steps please

Answer 1

Answer: x - (4x-7) = 5x - (x+21)

removing brackets will change the signs, same as mult the inside terms by -1

x - 4x + 7 = 5x - x - 21

-3x + 7 = 4x - 21

7 + 21 = 4x + 3x

Step-by-step explanation: 28 = 7x

x = 28/7

x = 4

:

:

Check solution in the original problem, replace x with 4

4 - (4(4)-7) = 5(4) -(4+21)

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Answer 2

Answer:

-5x-(-7-4x) = -2(3x - 4)

=> -5x + 7 +4x = -6x +8

=>-x + 6x = 8-7

=>5x = 1

=> x = 1/5