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lets use substitution y=7x-10 y=-3 so -3=7x-10 7=7x 1=x now lets check y=7(1)-10 y=-3 therefore both equations have the same value
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lets use substitution y=7x-10 y=-3 so -3=7x-10 7=7x 1=x now lets check y=7(1)-10 y=-3 therefore both equations have the same value