Solve for x
x=8
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0.8x=2.4+4
Add 4 to both sides.
0.8x=6.4
Add 2.4 and 4 to get 6.4.
x=\frac{6.4}{0.8}
Divide both sides by 0.8.
x=\frac{64}{8}
Expand \frac{6.4}{0.8} by multiplying both numerator and the denominator by 10.
x=8
Divide 64 by 8 to get 8.
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