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Llana [10]
4 years ago
12

What is the x coordinate in the solution of the system of equations y =-2/3x and 4x - 9y =-40

Mathematics
1 answer:
SOVA2 [1]4 years ago
6 0
The two given equations are:
y = -2/3 x 
4x - 9y = -40

Substitute by the first equation in the second as follows:
4x - 9(-2/3 x) = -40
4x + 6x = -40
10x = -40
x = -4
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