Explanation:
1. 3=5x-12
3+12=5x
15/5=x
3 = X
2. -3x + 5 = -13
-3x= -13 -5
x = -18/-3
x= 6
3. -x+6=4
-x =4-6
x=-2/-1
×=2
4.-4y=48
y =48/-4
y = -12
5. m/2=10
m=10×2
m=20
6.-2.5b=20.5
b = 20.5/-2.5
b = -4.2
7. ×/7+15=8
×/7 = 8-15
× = -7×7
× =-49
8. ⅓d-6=0
⅓d=6
d =6×3
d =18
9.(g-13)/4=9
g-13=9×4
g =36+13
g =49
10. (1-k)/5=5
1-k =5×5
-k =25-1
k =24/-1
k=-24
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