Add 30 to both sides: To solve for k, we need to isolate k on one side of the equation. We can do this by adding 30 to both sides of the equation to cancel out the −30 on the left side.−30+k+30=22+30
Simplify the equation: After performing the addition, we simplify both sides of the equation.k=22+30k=52
Substitute k back: We have found the value of k. To ensure there is no math error, we can substitute k back into the original equation to check if it satisfies the equation.−30+52=2222=22This is true, so there is no math error.
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