A=7
you would start with the equation 3a+4=a+18
to solve you try to get a by itself. you would first subtract an a from each side to get all the a's together- 2a+4=18
then you would subtract 4 from each side to get the 2a by itself- 2a=14
finally to get a by itself you divide each side by 2, to get a=7
Answer:
hope you can now substitute and find y
Be more specific. Like what is it asking you to do ? I'm trying to help. :)
Answer:
d I think please be right