denise02151971 denise02151971

15-11-2019
Mathematics

contestada

I am totally confused trying to help my son, on this problem
X-(4x-7)=5x-(x+21)

Can you show me how you got this step-by-step pleaae

Respuesta :

Аноним Аноним

15-11-2019

Answer: x=4

Step-by-step explanation: You have to distribute the negative signs

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

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

- 3x + 7 = 4x - 21

28 = 7x

X = 4

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