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5. Which method would be the simplest way to solve the system? 7x + 5y = 19, -7x – 2y = -16 A) graphing B) substitution C) elimination D) distributive
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5. Which method would be the simplest way to solve the system? 7x + 5y = 19, -7x – 2y = -16

A) graphing
B) substitution
C) elimination
D) distributive

User Jan X Marek
by
8.2k points

1 Answer

2 votes
7x + 5y = 19
-7x - 2y = -16
3y = 3
3 3
y = 1
7x + 5y = 19
7x + 5(1) = 19
7x + 5 = 19
-5 - 5
7x = 14
7 7
x = 2
(x, y) = (2, 1)
The method would be a elimination method (the answer is C).
User Qsiris
by
8.5k points
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