Solve for x and y in the following pair of equations:
y = -0.2x + 4.2
X - 0.5y = 10
A) x = 11; y = 2
B) x = 2; y = 11
C) x = 11; y = 6.4
D) x = 6.45; y = 2.9
E) x = 6.4; y = 11

Question

Solve for x and y in the following pair of equations: 
y = -0.2x + 4.2
X - 0.5y = 10
A) x = 11; y = 2
B) x = 2; y = 11
C) x = 11; y = 6.4
D) x = 6.45; y = 2.9
E) x = 6.4; y = 11

Quizplus · Accepted Answer

To solve for x and y, substitute the expression for y from the first equation into the second equation: X - 0.5(-0.2x + 4.2) = 10. Simplify and solve for x, then use the value of x to find y. Solving gives x = 11 and y = 2.

Solve for X and Y in the Following Pair of Equations