Question

X+12=4 27-x=35 3x+5-2=12 12x+5=2x+15 4x+5-7x=2-3x 5(x-2)=10 2(3-x)+3(2+x)=18 3(2x-1)=2(x+2) 4(x-1)=5x-4-x 2(3-x)-4(x-5)=2x+2

Answer 1

X+12=4 x=4-12
x=-8
27-x=35-x=35-27
-x=8/:(-)
x=-8
3x+5-2=12

3x=12-5+2
3x=9/:3
x=9

12x+5=2x+15

12x-2x=15-5
10x=10/:10
x=1
4x+5-7x=2-3x

4x+3x-7x=2-5
x=-3
5(x-2)=105x-10=10

5x10+10
5x=20/:5
x=4
2(3-x)+3(2+x)=18

6-2x+6+3x=18
-2x+3x=18-6-6
x=6
3(2x-1)=2(x+2)
6x-3=2x+4
6x-2x=4+3
4x=7/4
x=1 3/4


4(x-1)=5x-4-x4x-4=5x-4-x
4x-5x+x=-4+4
0=0

2(3-x)-4(x-5)=2x+2
6-2x-4x+20=2x+2
-2x-4x-2x=2-6-20
-8x=-24/:(-8)x=3