solve using substiution method 4x+7y=19 ; y=x+9
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Answer:
4x+7y=19
y=x+9
4x+7(x+9)=19
4x+7x+63=19
11x+63=19
11x=19-63
11x=-44
x=-4
putting value of x on y
y= -4+9
y=5
hope it helps
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