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y = 2x+5

x+y = 4

Substitute the value of y into the second equation:

x+2x+5 = 4

x+2x = 4-5

3x = -1

Divide both sides by 3 to find the value of x:

x = -1/3

Substitute the value of x into the original equations to find the value of y:

x = -1/3 and y = 4 and 1/3

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15y ago

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