Explain, in complete sentences, how you would use the substitution method to solve the following system of equations. Provide the solution to the system.

5x - y = -2
10x - 3y = -7

Question

Explain, in complete sentences, how you would use the substitution method to solve the following system of equations. Provide the solution to the system.

5x - y = -2
10x - 3y = -7

anonymous · Answer

choose an equation to set y equal to
ex: 5x-y=-2 can also be in the form of y= 5x+2
plug in y=5x+2 into 10x-3y+-7
10x-3(5x+2)=-7
-5x-6=-7
-5x=-1
x=1/5 now plug the sol x into x in one of the equation to get y
10(1/5)-3y=-7
2-3y=-7
-3y=-9
y=3
The solution is (1/5,3)