Question

Evaluate (3x + 5) - (2x + 7) when x = 5.

A. 30 - 34 = -4
B. 20 - 17 = 3
C. 20 - 10 + 7 = 17
D. 30 + 34 = 64
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Answer 1

The answer is 20 - 17 = 3 [Choice B.]

Explanation:

Put x = 5 into the formula (3x + 5) - (2x + 7)

[3(5)+5] - [2(5)+7]

= [15 + 5] - [10 + 7]

=20 - 17

= 3

Answer 2

The answer is B. 20 - 17 = 3

Explanation:

( 3x + 5) - (2x + 7)...... x = 5

( 3(5) + 5) - ( 2(5) + 7)

( 15 + 5) - (10 + 17)

20 - 17 = 3

Thank you :)