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If 3a+5=12, what is the value of 6a+14?

User Praveenks
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2 Answers

11 votes

The answer is

28

3a + 5 = 12

subtract 5 from both sides

3a = 7

divide by 3 on both sides to isolate "a"

a = 7/3

Substitute 7/3 for "a" in the second equation

6(7/3) + 14

6 multiplied by 7/3 = 42/3 = 14

14 + 14 = 28

User Learningcs
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7.8k points
8 votes

Answer:For example, choice A is incorrect because if the value of 10x + 3 were 4, then it would follow that x = 0.1, and the value of 5x + 6 would be 6.5, not 10.

Explanation:

User Rudo
by
8.9k points

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