2x+2y=17

4x-y=25

What is the x value of the system of equations

X=4.2

For the second equation, y=4x-25. Then you plug that into the first equation, which would form: 2x+2 (4x-25) = 17. Simplify. 2x+8x-25=17. 10x=42. x=4.2

6.7 is the value of x.

Step-by-step explanation:

Given equations are

2x+2y=17 eq (1)

4x-y=25 eq (2)

from eq (2), we get

-y=25-4x

multiplying by - 1 to above equation, we get

y=-25+4x

y=4x-25

subtitute above value of y in eq (1), we get

2x+2 (4x-25) = 17

2x+8x-50=17

add 50 on both sides of above equation, we get

2x+8x-50+50=17+50

2x+8x+0=17+50

2x+8x=17+50

add like terms

10x=67

dividing by 10 on both sides of above equation, we get

10x/10=67/10

x=67/10=6.7 which is the answer.