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?

let x be the original weight. we know that we've taken 45 pounds away from x, so her current weight is

we also know that her current weight is 122 pounds, so we have the equation

to solve the equation, add 45 to both sides:

the first dot plot best represents the data

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