16Hit1600
Advanced MathEasySubstituting into a linear expression

Advanced Math practice question

When x = 3, what is the value of 2x + 4?

Answer: 10

2(3) + 4 = 6 + 4 = 10.

Common wrong answers

If you answered 7
7 is 3 + 4, dropping the 2.
If you answered 9
9 comes from 2 + 3 + 4, adding instead of multiplying.
If you answered 14
14 is 2(3 + 4), distributing wrongly.

More Advanced Math questions

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