Find the solution to the system of equations, x + 3y = 7 and 2x + 4y = 8.
1. isolate x i...
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Mathematics, 22.01.2020 00:31 gabrielleteti
Find the solution to the system of equations, x + 3y = 7 and 2x + 4y = 8.
1. isolate x in the first equation: x = 7 β 3y
2. substitute the value for x into the second equation: 2(7 β 3y) + 4y = 8
3. solve for y:
14 β 6y + 4y = 8
14 β 2y = 8
β2y = β6
y = 3
4. substitute y into either original equation: x = 7 β 3(3)
5. write the solution as an ordered pair:
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