Question

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1. x + 5 = 10
2. 3y - 7 = 2y + 14
3. 30 + 6x = 12
4. 4 x + 18 = 6 - 2x
5. 8m + 9 = 5m
6. 4(2y - 3) = 4y + 10
7. -2 x = 6
8. 1/2 x +3 = 9

Answer 1

1.x=10-5
x=5
2.3y-2y=14+7
y=21
3.6x=12-30
6x=-18
x=-3
4.4x+2x=6-18
6x=-12
x=-2
5.8m-5m=-9
3m=-9
m=-3
6.8y-12=4y+10
8y-4y=10+12
4y=22
y=5,5
7.-2x=6
x=6/-2
x=-3
8.1/2x+3=9
1/2x=9-3
1/2x=6
x=6:1/2
x=12

Answer 2

1. x= 10 -5
×= 5

2. 3y -7 = 2y + 14
3y - 2y = 14 + 7
y = 28

3. 30 + 6× = 12
6× = 12 - 30
6× = -18
×= -3

4. 4× + 18 = 6 - 2×
4× + 2× = 6 - 18
6× = -12
× = -2

5. 8m + 9 = 5m
8m - 5m = 9
3m = 9
m = 3

6. 4(2y -3) = 4y + 10
8y - 12 = 4y + 10
8y - 4y = 10 + 12
4y = 22
y = 5,5

7. -2× = 6
×= -3

8. 1/2× + 3 = 9
1/2× = 9-3
1/2× = 6
×= 12