Question

b)2(3x+4)-5(2x-3)+7=7(x-1)+4
c)2(3x-4)+5(6x-7)-7x=16(x+15)-10
d)3(6x-5)-2(4x+13)+5=5(-x+4)-26



VA ROG MULT DAU COROANA VA ROG

Answer 1

2(3x+4)-5(2x-3)+7=7(x-1)+4
6x+8-10x+15+7=7x-7+4
-4x-7x= -30-3
-11x=-33
x= 3

2(3x-4)+5(6x-7)-7x=16(x+15)-10
6x-8+30x-35-7x= 16x+240-10
29x-16x= 43+230
13x=273
x=21

3(6x-5)-2(4x+13)+5=5(-x+4)-26
18x-15-8x-26+5= -5x+20-26
10x+5x= 36-6
15x=30
x=2

Gata :)))