answersLogoWhite

0

rewrite first equation: x = 15 - y

substitute into second equation for x: 4(15 - y) + 3y = 38

distribute and simplify: 60 - y = 38

solve: y = 22

plug back into first equation: x = -7

-OR-

multiply first equation by -3: -3x - 3y = -45

add new equation to second equation: 1x + 0y = -7 or x = -7

plug back into first equation: y = 22

User Avatar

Wiki User

12y ago

Still curious? Ask our experts.

Chat with our AI personalities

JudyJudy
Simplicity is my specialty.
Chat with Judy
ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
RafaRafa
There's no fun in playing it safe. Why not try something a little unhinged?
Chat with Rafa

Add your answer:

Earn +20 pts
Q: X plus y equals 15 and 4x plus 3y equals 38?
Write your answer...
Submit
Still have questions?
magnify glass
imp