Question 124

The equations 3x+ 4y = 10 and -x+ 2y = 0 have the solution (a, b). The value of a + b is

3x + 4y = 10 ---> (1)
x - 2y = 0
2x - 4y = 0 ---> (2)
5x = 10
x = 2
y = 1
x + y = 3

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