hawaiibusgirl hawaiibusgirl

01-07-2022
Mathematics

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15y - 9x =-9 -8y+9x=12

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rachelwangg17 rachelwangg17

01-07-2022

Add the two functions together to get

7y=-3
y=-3/7

Then plug in y to either function to solve for x, I’ll just use the left one

15(-3/7)-9x=-9
-45/7-9x=-9
-9x=-18/7
x=18/7/9

x=2/7

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