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Pierre Barnett
Mathematics
11 July, 09:51
Y=-9x+8 y=-10x+9 I don't know how to solve this
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Paul Mendez
11 July, 09:54
0
x = 1
Step-by-step explanation:
From the various available methods of solving systems of linear equations, let's use substitution, because "y = " appears in both equations:
y = - 9x + 8 = y = - 10x + 9
Then - 9x + 8 = - 10x + 9
Combining the x terms, we get:
x + 8 = 9
Finally, subtracting 8 from both sides yields
x = 1
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Jackson Fowler
11 July, 09:54
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You use substitution, so you chose one of the equations to plug in, let's use y=-9x+8 you plug that in where it says y because that is what y equals. So the new equation is - 9x+8=-10x+9. After that you add 10x to both sides and the equation breaks down to x+8=9 and finally x=1
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