Wendy is paid $7.50 per hour plus a bonus of $80 each week. Last week Wendy earned $312.50. How many

[math_celebrity]

Wendy is paid $7.50 per hour plus a bonus of $80 each week. Last week Wendy earned $312.50. How many hours did Wendy work last week?

Setup the earnings equation with h hours:
7.5h + 80 = 312.50

Solve for h in the equation 7.5h + 80 = 312.50

Step 1: Group constants:
We need to group our constants 80 and 312.50. To do that, we subtract 80 from both sides
7.5h + 80 - 80 = 312.50 - 80

Step 2: Cancel 80 on the left side:
7.5h = 232.5

Step 3: Divide each side of the equation by 7.5
7.5h/7.5 = 232.5/7.5

h = 31

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