Question

solve each system by substitution
y=-5x+22
-7x+5y=14

Answer 1

Slow down there. Other people need help too.
Substitute the entire first equation into the second one where there is a y. You then have an equation in one variable. Solve for x. Go back to the first equation with your x-value and solve for y

Answer 2

you just need to plug y=-5x+22
to the equation -7x+5y=14

-7x+5(-5x+22)=14
solve that and you'll get the value of x and y

Answer 3

y=-5x+22 -----------1
-7x+5y=14------------2
put 1 into 2,
-7x+5y=14
-7x+5(-5x+22)=14
-7x+25x+110=14
-18x+110=14
-18x=-96
x=-96/-18---------3
put 3 into 1,
y=-5x+22
y=5(-96/-18)+22
y=48/2/3