SOLUTION: Having Trouble understanding the procedure for finding the answer. 1) Solve the system using substitution of linear equations. the 2 linear equations are: a)2x + 3y = -4

Question 128720: Having Trouble understanding the procedure for finding the answer.

1) Solve the system using substitution of linear equations.
the 2 linear equations are:
a)2x + 3y = -4
b)y - 2x = 4

thanks
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Solve the system of equations by "substitution":
a)
b) Rewrite this equation in terms of y, then "substitute" into the first equation and solve for x.
b) Substitute this for y in equation a)
a) Simplify and solve for x.

Subtract 12 from both sides.
Divide both sides by 8.

To find the y-value, substitute this value of x into either one of the two given equations...let's use equation b).
Substitute x = -2.

Subtract 4 from both sides.

The solution is: (-2, 0)
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