How do you answer this question:
when 2x-4 is substituted for y in the equation 11x-5y=3 what is the value of x.
I really need to know how to do this for an exam next week please help thanks.
when 2x-4 is substituted for y in the equation 11x-5y=3 what is the value of x.
I really need to know how to do this for an exam next week please help thanks.
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11x-5y=3; y=2x-4
11x-5(2x-4)=3
11x-10x+20=3
x=-17
11x-5(2x-4)=3
11x-10x+20=3
x=-17
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It means y = 2x-4
Your second equation then becomes 11x - 5*(2x-4) = 3
Simplify and solve for x.
Your second equation then becomes 11x - 5*(2x-4) = 3
Simplify and solve for x.