5 + 2x = 13
Therefore, 2x = 13 - 5 = 8
Therefore, x = 4.
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-8
2(8 + 5) = 2(13) = 26
The answer is -9 because -5 +2a = -13. -5 on both sides looks like this 2a = -18. Divide 2 on both sides because the variable has to be alone. a = -9
Then the number is 3
2N-13