Question

Solve for x.

−7.85 =
x
−3.14
A) −24.649
B) −25.469
C) 23.64
D) 24.649

Answer 1

`-7.85=(x)/(-3.14)\qquad\text{Given}\\\\(-7.85)\cdot (-3.14)=x\qquad\text{multiply by -3.14}\\\\24.649=x\qquad\text{simplify}`

The appropriate choice is ...

... D) 24.649

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A product involving an even number of minus signs is positive.