Answer:
-4x+5y=26
2x-9y=-26
we multiply the 2nd equation by 2
--->2(2x-9y)=-26)
--->4x-18y=-52
we rewrite the system
4x-18y=-52
--->-13y=-26
y=2
we calculate x:
-4x+5*2=26
-4x=26-10
x=-16/4=-4
solutions (-4;2)
Explanation:
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