Question

Me Ajudem Por Favor (Preciso Das Contas )
A)3(X-1)-7 =15
B)7(X-4)=2X-3
C)3(X-2)=4(3-X)
D)3(3x-1)=2(3 x+2)
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Answer 1

a) 3(X-1)-7=15

3X - 3 - 7 = 15

3X = 15 + 3 + 7

3X = 25

X = 25/3

b) 7(X-4)=2X-3

7X - 28 = 2X - 3

7X - 2X = (-3) + 28

5X = 25

X = 25/5 = 5

c) 3(X-2)=4(3-X)

3X - 6 = 12 - 4X

3X + 4X = 12 + 6

7X = 18

X = 18/7

d) 3(3X-1)=2(3X+2)

9X - 3 = 6X + 4

9X - 6X = 4 + 3

3X = 7

X= 7/3