Question

(4-7x)/15 + (1-x)/3 = 4 - (2x+1)/5

Answer 1

(4-7x)/15+(1-x)/3=4-(2x+1)/5

(4-7x)/15+(1-x)/3-4+(2x+1)/5=0

(4-7x+5-5x-60+6x+3)/15=0

4-7x+5-5x-60+6x+3=0

-7x-5x+6x=-4-5+60-3

-6x=48

x=48/(-6)

x=-8

Ответ: x=-8.

Answer 2

$frac{4-7}{15} +frac{1-x}{3} =frac{4-2x-1}{5} \4-7x+5(1-x)=60-3(2x+1)\4-7x+5-5x=60-6x-3\\9-12x=57-6x\-12x+6x=57-9\-6x=48\x=-8$