3 years ago

15

Mathematics

1 answer:

Nadya [2.5K]3 years ago

4 0

Answer:

Step-by-step explanation:

OA 2(x + 3) = 40

2(15+3)

=2(18)

=36 (wrong)

OB. 2[x - 5) = 30

2(15-5)

=2(10)

=20 (wrong)

OC 2(x + 5) = 40

2(15+5)

=2(20)

=40 (correct)

OD. x + 2x = 30

15+2(15)

=15+30

=45(wrong)

OE 3x - x = 45

3(15)-15

=45-15

=30 (wrong)

so yeah the answer is C

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