Question

Solve the system of equations.
Y=9x-17
y = x + 23

Answer 1

x = 5

y = 28

the expressions both equal y so they are equal to each other. so you right the equation as

9x - 17 = x + 23

then you subtract x from both sides

and then add 17 to both sides

the final step is to divide 8 on both sides and that gives you the answer x = 5. then you plug that back into the problem so...

y = 5 +23

so y = 28.

hope this helped!

Answer 2

y=9x-17; x=17/9 or x=1 8/9 or x=1.8

y=x+23; x= -23

Explanation:

y=9x-17

0=9x-17 (Move variables to the left-hand side and change its sign)

-9x=-17 (Divide both sides of the equation by -9)

x=17/9, x=1 8/9, or x=1.8

y=x+23

0=x+23 (To find x-intercept/zero, substitute y=0)

-x=23 (Move variable to the left-hand side and change its sign)

x= -23 (Change the signs on both sides of the equation)

x= -23