algebra
i have 2 solve by elimination an i keep gettin fractions when the answer is (3,3)
my teacher gave me the answer an problem but she wants me 2 work it out
idk how i keep gettin fractions
the problem is:
3x4y=21
8x5y=9
please help
asked by
angel

Multiply by 5 (3x  4y = 21)
Multiply by 4 (8x  5y = 9)
15x + 20y = 105
32x  20y = 36
47x + 0 = 141
47x = 141
x = 3
8x  5y = 9
x = 3
8(3)  5y = 9
24  5y = 9
5y = 15
y = 3
posted by helper

ty
posted by angel
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