Question

FIND x




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Answer 1

Answer:

3 × (7-x)= 5 × (2-x)

21- 3x = 10- 5x

21-10= -5x +3x

11= -2x

2x = -11

x = -11/2

Answer 2

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-3x+3.7=-5x+5.2

-3x+21=-5x+10

2x=-11

2x/2=-11/2

x=-11/2