Question

Solve each system using substitution. Check your answer.
x+3=y 3x+4y=7
this is one whole problem^

Answer 1

@SolomonZelman

Answer 2

x+3=y
3x+4y=7

substitution means to isolate a variable to plug into the

x+3=y
x=y-3

plug into 2nd equation

3(y-3)+4y=7

3y-9+4y=7

7y=16

Answer 3

now solve for y and plug back to either equation to get x

Answer 4

oh ok thank you for breaking it down :)

Answer 5

Np, feel free to medal and fan and tag me for more questions

Answer 6

thanks