Respuesta :

2.5h−15=4h

Subtract 4h from both sides.

2.5h−15−4h=4h−4h

−1.5h−15=0

Add 15 to both sides.

−1.5h−15+15=0+15

−1.5h=15

Divide both sides by -1.5.

−1.5h/−1.5 = 15/−1.5

h=−10

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