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sergij07 [2.7K]
3 years ago
10

Which is a solution to the systen of equations. x+3y=18. x+2y=14 A) 6,4 B) 4,6 C) 6,-4 D) -4,6​

Mathematics
2 answers:
liberstina [14]3 years ago
8 0
A:). because if you subtract on x+2y=14 from x+3y=18 you get y=4 and letter A is the only answer with positive 4 in the y coordinate (x,y)
DedPeter [7]3 years ago
7 0

Step-by-step explanation:

• Elimination (find y) :

x + 3y = 18

<u>x + 2y = 14</u><u> </u> _

y = 4

• Substitute y = 4 to one equation :

x + 3y = 18

x + 3(4) = 18

x + 12 = 18

x = 18 - 12

x = 6

• The set of equations :

{x, y} = {6, 4}

So, the solution to that system equation is 6, 4 (A)

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