Find x if f(x) = 2x + 7 and f(x) = -1

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Find x if f(x) = 2x + 7 and f(x) = -1

Guest Jan 12, 2015

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Best Answer

+33665

+5

Just set 2x + 7 = -1

Subtract 7 from both sides to get 2x = -8

Divide both sides by 2 to get x = -4

.

Alan Jan 12, 2015

1⁺⁰ Answers

+33665

+5

Best Answer

Just set 2x + 7 = -1

Subtract 7 from both sides to get 2x = -8

Divide both sides by 2 to get x = -4

.

Alan Jan 12, 2015

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