Question

2+(x+5) egal 10

2x egal 4

5x egal 105
2x+7x egal2x+14
10x egal 10
2x+3x egal 15

2x+6 egal12

5x-19 egal 31

Answer 1

2+(x+5)=107+x=10
x=10-7
x=3

2x =4
x=4:2
x=2

5x =105
x=105:5
x=21

2x+7x=2x+14
9x=2x+14
9x-2x=14
7x=14
x=14:7
x=2

10x=10
x=10:10
x=1

2x+3x = 15
5x=15
x=15:5
x=3

2x+6=l12
2x=12-6
2x=6
x=6:2
x=3

5x-19=31
5x=31+19
5x=50
x=50:5
x=10