Question

21-3(x-7)=x+20 .solve this equation​

Answer 1

Step-by-step explanation:

21-3x-21=x+20

3×-x=20

x=20/2=10

x=10

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Answer 2

Step-by-step explanation:

QUESTION: 21-3(x-7)=x+20

ANSWER: 18(x-7)=x+20

18x-126=x+20

18x-x = 20+126

17x = 146

x = $\frac{146}{17}$