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Iwan Satria · Answer 1 · 2024-08-09T03:22:08+0000

Answer is (7, 11) x=7, y=11

Subtraction

15x + 45y = 600
- (15x + 15y = 270)

30y = 330
Divide by 30

y = 11

Sub value of y into equation 2

15x + 15(11) = 270
15x + 165 = 270
Subtract
15x + 165 - 165 = 270 - 165

15x = 105
Divide

X = 7

X=7, y = 11

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