Solve Systems of Equations:
x + 12y = 7; x - y = 7 =======> x = 7, and y = 0
Step 1: I will try to solve your System of Equation:
x + 12y = 7; x - y = 7
Solve:
x + 12y = 7x for x:
x + 12y + -12y = 7 + -12y (Add --12y both sides):
x = -12y + 7
Substitute:
-12y + 7 for x in x - y = 7
x - y = 7
-12y + 7 - y = 7
-13y + 7 = 7 (Simplify both sides):
-13y + 7 + -7 = 7 + -7 (Add -7 both sides):
-13y = 0
-13y / -13 = 0 / -13 (Divide both sides by -13):
y = 0
Substitute:
0 for y in x = -12y + 7
x = -12y + 7
x = ( -12 )(0 ) + 7
x = 7 (Simplify both sides of Equations:):
Therefore, Answers, x = 7, and y = 0
Hope that helps: : )