Question

VA ROOG SA MA AJUTATI.
a)2(3x-4)+5(6x-7)-7x=16(x+15)-10
b)3(6x-5)-2(4x+13)+5=5(-x+4)-26
c)5x+9+3(2x-1)=2x+24
d)3(x+2)+2(x-4)=4x-1
e)7x+8+2(5-x)=6+2(x+3)
f)5(x-2)+4x-3=6x+11

Answer 1

a.2(3x-4)+5(6x-7)-7x=16(x+15)-10
6x-8+30x-35-7x=16x+240-10
29x-43=16x+230
13x=273
x=21
b.3(6x-5)-2(4x+13)+5=5(-x+4)-26
18x-15-8x-26+5=-5x+20-26
10x-36=-5x-6
15x=30
x=2
c.5x+9+3(2x-1)=2x+24
5x+9+6x-3=2x+24
11x+6=2x+24
9x=18
x=2
d.3(x+2)+2(x-4)=4x-1
3x+6+2x-8=4x-1
5x-2=4x-1
x=1
e.7x+8+2(5-x)=6+2(x+3)
7x+8+10-2x=6+2x+6
5x+18=2x+12
3x=-6
x=-2
f.5(x-2)+4x-3=6x+11
5x-10+4x-3=6x+11
9x-13=6x+11
3x=24
x=8