SOLUTION: I need help with this question. Solve using either elimination or substitution. If the system has either no solution or an infinite number of solutions, state this. 7x

SOLUTION: I need help with this question. Solve using either elimination or substitution. If the system has either no solution or an infinite number of solutions, state this. 7x - 2y =

Question 207956: I need help with this question.
Solve using either elimination or substitution. If the system has either no solution or an infinite number of solutions, state this.
7x - 2y = 24
5x + 4y = 28
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
7x - 2y = 24 MULTIPLY THIS EQUATION BY 2 & ADD THEM.
5x+4y=28
14X-4Y=48
---------------------
19X=76
X=76/19
X=4 ANS.
7*4-2Y=24
28-2Y=24
-3Y=24-28
-2Y=-4
Y=-4/-2
Y=2 ANS.
PROOF:
5*4+4*2=28
20+8=28
28=28
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