Question 59878
 
4w-3w+2w=24 
1w+2w=24
3w=24
3w/3=24/3
w=8
Check by plugging (w=8) back into the original equation.
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4(x+3)=20 
4x+12=20
4x+12-12=20-12
4x=8
4x/4=8/4
x=2
Check by plugging (x=2) back into the original equation.
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-8+t/3=7 
-8-8+t/3=7+8
t/3=15
(3)(t/3)=(15)(3)
t=45
Check by plugging (t=45) back into the original equation]
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(y+3)/7=9
(7)(y+3)=(9)(7)
y+3=63
y+3-3=63-3
y=60
Check by plugging (y=60) back into the original equation.