Question

Simplify the following expression. 3y – 2x + z – 2x + 3(x + y)

a. –x + 4y + z
b. –x + 6y + z
c. x + 4y + z
d. 3x + 4y + z

Answer 1

The answer is B

i came out with 6y - x + z

but it's the same as -x + 6y = Z

answer is B