What is the value of 3a – 2b + 2a, when a = 2 and b = 3? a. 3 b. 4 c. 5 d. 6

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Short B. 4

Why? 

When we have an equation like 1x, and x = 2, then that means that we are multiplying by x or 1 * x. So, a = 2 and b = 3, we have to multiply 3 & 2 by 2, and 2 by b. (3 * a(2) ==> 6) ~~ (2 * 2 ==> 4) ~~ (2 * 3 ==> 6) Now, we have 6 - 6 + 4. Evalutate. (6 - 6 ==> 0) ~~ (0 + 4 ==> 4) 4 is the final answer.

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B. because the 7 represents "seven times", x represents "a number", 12 represents "plus twelve", and -4 represents "minus four"