The solution set of |r - 3| = 10 is {7, 13} {-7, 13} {-13, 13}

{-7, 13}

Step-by-step explanation:

|R - 3| = 10

There are two cases, one positive and one negative

R - 3 = 10  and R-3 = -10

Add 3 to each side

R - 3+3 = 10+3  and R-3+3 = -10+3

R = 13                       R = -7

The solution set is {-7, 13}

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step-by-step explanation: