1. 3×+7=5 2. a+6=-a+3 3. 4a+5=2a-11 4. 7×+5=2+× 5. 10b+5=b tolong jawab soal ini dengan benar

1. 3x + 7 = 5
3x = 5-7 = -2
x = -2/3

2. a+6=-a+3
a+a=3-6
2a= -3
a=-3/2

3. 4a+5=2a-11
4a-2a=-11-5
2a=-16
a=-16/2=-8

4. 7x+5=2+x
7x-x=2-5
6x=-3
x=-3/6 = -1/2

5. 10b+5=b
10b-b=-5
9b=-5
b=-5/9

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