Solve for x
x=7
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0.8x=1.6+4
Add 4 to both sides.
0.8x=5.6
Add 1.6 and 4 to get 5.6.
x=\frac{5.6}{0.8}
Divide both sides by 0.8.
x=\frac{56}{8}
Expand \frac{5.6}{0.8} by multiplying both numerator and the denominator by 10.
x=7
Divide 56 by 8 to get 7.
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