Question

Solve the system by substitution.
x=-6y 4x + 10y = 14

Answer 1

x = 6

y = -1

Explanation:

x = - 6y ----------------------(I)

4x + 10y = 14 ------------------(II)

Substitute x = -6y in equation (II)

4*(-6y) + 10y = 14

-24y + 10y = 14 {Combine like terms}

-14y = 14 {Divide both sides by 1-4}

y = 14/-14

y = -1

Now, substitute y = -1 in equation (I)

x = - 6*(-1)

x = 6