Question

Evaluate 4b – a when a = 12 and b=7. 4b - a= 0

Answer 1

Answer: 4b - a = 15

Step-by-step explanation: if you replace the variables with their equivalent counterparts you get the equation 4(7) - 12 = __ when you do the math make sure to do the parentheses first then subtract, just like in elementary school remember pemdas parentheses, exponents, multiplication, division, addition, subtraction. I hope this helps.

Answer 2

4b - a
4(7) - (12)
28 - 12
16