Question

Solve the system by substitution. (Simplify your answer. Type an ordered pair- (x, y) for the solution.)

y = 5.4 + 16.22
y = -3x - 7.3

The solution is ?

Answer 1

(-9.64,21.62)

Explanation:

y=5.4+16.22 so 5.4+16.22=21.62=y

You then plug this y-value into the second equation and get 21.62=-3x-7.3

Rearrange the equation to get 21.62+7.3=-3x, simplify to 28.92=-3x.

Then you simply divide by side by -3 to get x=-9.64