In two or more complete sentences write and solve an equation for the situation and explain how you will solve the equation. After an 8-week exercise program Grace lost 45 pounds. She now weighs 122 pounds. How much did Grace weigh before she started her exercise program?

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Grace weighed 167 pounds before she started her exercise.

Lost: 45 pounds

Weight after exercise: 122 pounds

X represents the weight before she started.

Loss = subtraction

Subtract the lost weight from original weight she started with.

Original - lost = weight after exercise weeks

x - 45 = 122

Add 45 on BOTH sides

x - 45 + 45 = 122 + 45

x = 167 pounds

Hope this helps!

Well in order to lose a pound you would have to burn 1,500 calories. the more calories you burn the more weight you lose. in order to lose 2 pounds you would have to run 4 hours and 28 minutes.