3 years ago

Find x if f(x) = 2x + 7 and f(x) = -1. a.5 b.-3 c.-4

Mathematics

1 answer:

Stella [2.4K]3 years ago

7 0

Answer:

Answer c. -4

Step-by-step explanation:

Equations

Given:

f(x) = 2x + 7

We need to find the value of x such that:

f(x) = -1

Equating:

2x + 7 = -1

Subtracting 7:

2x = -1 - 7

Operating:

2x = -8

Dividing by 2:

x = -8 / 2 = -4

x = -4

Answer c. -4

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