Question

What is the resulting equation when the expression for y in the second equation is substituted into the first equation? 3x y = 1 y = 6 - 4x -x 6 = 1 x 6 = 1 7x 6 = 1.

Answer 1

The resulting equation will be $-x+6=1$, when the expression for y in the second equation is substituted into the first equation.

Given equations,

$3x+y=1.....(1)$

$y=6-4x........(2)$

According to the question, When the expression for y in the second equation is substituted into the first equation it means we have to put the value of $y=6-4x$ from equation (2) in equation (1).

Resulting Equation,

$3x+6-4x=1$

$-x+6=1$

Hence the required equation is $-x+6=1$. So the correct option is (A) $-x+6=1$.

For more details on Substitution method follow the link:

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