Question

PROSZE POMÓŻCIE !!!!
a) 2(x-8)+(4-11x)=3(2x-1)-(x+4)
b) 6(4-x)+5(2x-5)=4(x-1)-3(4-x)
c) 7-(3x+4)=(x+1)-(2x+4)
d) 4(2x-5)+3(3-2x)=12
e) 2(x-5)-3x+4(3-x)+3(x+2)

Answer 1

A) 2(x-8)+(4-11x)=3(2x-1)-(x+4)
2x-16+4-11x=6x-3-x-4
2x-11x-6x+x= -4-3-4+16
-14x= 5 /:(-14)
x= -5/14
b) 6(4-x)+5(2x-5)=4(x-1)-3(4-x)
24-6x+10x-25=4x-4-12+3x
-6x+10x-4x-3x=-12-4+25-24
-3x=-15 /:(-3)
x=5
c) 7-(3x+4)=(x+1)-(2x+4)
7-3x-4=x+1-2x-4
-3x-x+2x=-4+1+4-7
-2x= -6 /:(-2)
x= 3
d)4(2x-5) +3(3-2x)=12
8x-20+9-6x=12
8x-6x=12-9+20
2x= 23 /:2
x= 23/2
x=11 1/2
e) 2(x-5)-3x+4(3-x)+3(x+2)=2x-10-3x+12+4x+3x+6= 2x-3x+4x+3x-10+12+6=6x+8

Answer 2

A) 2x+16+4-11x=6x-3-x-4
2x+16+4-11x+6x+3+x+4=0
2x+27=0
2x=-27/2
x=-27/2
b) 6(4-x)+5(2x-5)=4(x-1)-3(4-x)
24-6x+10x-25=4x-4-12+3x
24-6x+10x-25-4x+4+12-3x=0
15-3x=0
-3x=-15/-3
x=5
c)7-(3x+4)=(x+1)-(2x+4)
7-3x-4=x+1-2x-4
7-3x-4-x-1+2x+4=0
10+-2x=0
-2x=-10/2
x=-5
d) 4(2x-5)+3(3-2x)=12
8x-20+9+6x-12=0
14x-23=0
14x=23/14
x=2/14

e)2(x-5)-3x+4(3-x)+3(x+2)
2x-10-3x+12+4x+3x+6=0
6x+8=0
6x=-8/6
x=8/6