Answer:
x = -2 & y = 6
Step-by-step explanation:
[tex]10x+10y=40[/tex]
[tex]10x+10y+ -10y=40+-10y[/tex]
[tex]10x=-10y+40[/tex]
[tex]\frac{10x}{10} =\frac{-10y+40}{10}[/tex]
[tex]x=-y+4[/tex]
[tex]5x+3y=8[/tex]
[tex]5(-y+4)+3y=8[/tex]
[tex]-2y+20=8[/tex]
[tex]-2y+20+-20=8+-20[/tex]
[tex]-2y=-12[/tex]
[tex]\div2[/tex]
[tex]y=6[/tex]
[tex]x=-y+4[/tex]
[tex]x=-6+4[/tex]
[tex]x=-2[/tex]
Hope this helps.
