Answer:
The required solution is (0.128,13.82)
Step-by-step explanation:
Consider the provided system of equation.
[tex]-2.5x+y=13.5[/tex]......(1)
[tex]12.25x - y=-12.25[/tex]......(2)
We need to solve the system of equation by substitution method.
Consider the equation 1.
[tex]-2.5x+y=13.5[/tex]
[tex]y=13.5+2.5x[/tex] ......(3)
Substitute the value of y in equation 2.
[tex]12.25x - (13.5+2.5x)=-12.25[/tex]
[tex]12.25x-13.5-2.5x=-12.25[/tex]
[tex]9.75x-13.5=-12.25[/tex]
[tex]9.75x=-12.25+13.5[/tex]
[tex]9.75x=1.25[/tex]
[tex]x\approx 0.128[/tex]
Now substitute the value of x in equation 3.
[tex]y=13.5+2.5(0.128)[/tex]
[tex]y\approx 13.82[/tex]
Hence, the required solution is (0.128, 13.82)
Answer: (-5,1)
Step-by-step explanation:
graph it and look where the lines intersect
