solve the linear equation x_4/7_x+4/5=x+3/7
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Answer:
(x – 4)/7 = (x + 3)/7 + (x + 4)/5
= (5x – 20 = 5x + 15 + 7x + 28)/35
⇒ 5x – 5x – 7x = 15 + 28 + 20
⇒ -7x = 63 ⇒ x = 63/-7 = -9
∴ = x = -9
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