In the first equation, change it to y=3x+2 (move 3x to the right of the equal sign, and then divide by -1, since it is now -y). Equation #2 should now be 5y=-6x+24

Y=3x+2
5y=-6x+24

Substitute for x

5(3x+2)=-6x+24 eliminate parentheses with the distributive property
15x+10=-6x+24 combine like terms (x)
21x+10=24 eliminate constant (+,-)
21x=14 eliminate coefficient (*,/)
X=2/3 (: Plug … Read more