12-04-2022
Mathematics

contestada

-4x + y = -9
-
5x + 2y = 3
:
Solve the Linear equation

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12-04-2022

-4x+y= -9 can be turned into
y= -9 + 4x

5x+2y=3 (plug y in)
5x+2(-9+4x)=3
5x-18+8x=3
5x+8x=3+18
13x=21
divide 13 on both sides
x=1.6

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