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3 years ago

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

Mathematics

2 answers:

Natali [406]3 years ago

8 0

Answer: -4

Step-by-step explanation:

Solve 2x+7=-1

2x. =-8

x. =-4

nevsk [136]3 years ago

7 0

Answer:

-4

Step-by-step explanation:

To find the value you have to substitute x for -1. because f(x) = -1.

-2x + 7 = -1

-7= -7

-2x =-8

÷-2

x=-4

Hope it helps!

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