Solve for x
x=20
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0.8x-2-0.45x=5
Subtract 0.45x from both sides.
0.35x-2=5
Combine 0.8x and -0.45x to get 0.35x.
0.35x=5+2
Add 2 to both sides.
0.35x=7
Add 5 and 2 to get 7.
x=\frac{7}{0.35}
Divide both sides by 0.35.
x=\frac{700}{35}
Expand \frac{7}{0.35} by multiplying both numerator and the denominator by 100.
x=20
Divide 700 by 35 to get 20.
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