Question

a) 2x+3=15 b) 7x-1=13 c) 2x-4=3 d) 4x+2=-18
e) 5x-2=7+6 f)10x+1=-4-5

Answer 1

a) 2x+3=15
2x=15-3
2x=12
x=12/2
x=6
b) 7x-1=13
7x=13-1
7x=12
x=12/7
c) 2x-4=3
2x=3+4
2x=7
x=7/2
d) 4x+2=-18
4x=-18-2
4x=-20
x=-20/4
x=-5
e) 5x-2=7+6
5x=7+6+2
5x=15
x=15/5
x=3
f) 10x+1=-4-5
10x=-4-5-1
10x=-10
x=-10/10
x=-1

Answer 2

2x+3=15
2x=15-3
2x=12
x=12/2
x=6

7x-1=13
7x=13+1
7x=14
x=14/7
x=2

2x-4=3
2x=3+4
2x=7
x=7/2

4x+2=-18
4x=-18-2
4x=-20
x=-20/4
x=-5

5x-2=7+6
5x=7+6+2
5x=15
x=15/5
x=3

10x+1=-4-5
10x=-4-5-1
10x=-10
x=-10/10
x=-1