Solve for x
x<\frac{160}{9}
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2x\left(21+15\right)<1280
Multiply 30 and 0.7 to get 21.
2x\times 36<1280
Add 21 and 15 to get 36.
72x<1280
Multiply 2 and 36 to get 72.
x<\frac{1280}{72}
Divide both sides by 72. Since 72 is positive, the inequality direction remains the same.
x<\frac{160}{9}
Reduce the fraction \frac{1280}{72} to lowest terms by extracting and canceling out 8.
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