Algebra 2345678!!
posted by Margie .
Solve the system of equations using the Addition method.
2a + 3b = 1
3a + 5b = 2
The addition method tells you to find common multiples of a coefficient, then add the equations together to eliminate a variable.
If you multiply the first equation by 3 and the second by 2 you have
2a + 3b = 1
3a + 5b = 2
becomes
3 (2a + 3b = 1)
2(3a + 5b = 2)
which is
6a + 9b = 3
6a10b = 4
Now add together to get
b=1 or b=1
Now substitute into either equation and solve for a.
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