Solve system by using the substitution method.

y=2x+9
8x-3=y

( ? , )

Step-by-step explanation:

⇒   [Multiply equation 1 by 4]

⇒   [Subtract equation 2 from eq 1]

*Here I do 4y - y = 3y; 8x - 8x = 0; 36 - -3 = 39.

⇒   [Divide both sides by 3]

⇒   [Sub in y]

⇒   [Subtract 9 from both sides]

⇒   [Divide both sides by 2]

Hope this helps! :D

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!