Solve by the substitution method.
4x + 3y = -10
X = 14 – 9y
What is the solution of the system?
Solution:-
Put the value of x from equation(2) into (1)
4*(14-9y)+3y=-10
56-36y+3y=-10
-33y=-66
Divide both sides by -33
Y=2
Put this value in equation (1)
4x+3*2=-10
4x+6=-10
4x=-10-6
4x=-16
X=-16/4
X=-4
So final answer is x=-4 and y=2