Question

Solve the system by substitution:y=2 -3x-4y=1

Answer 1

Given:

The equation is -3x-4y=1.

The value of y is 2.

The objective is to solve the equation.

The equation can be solved by substituting the value of y.

$\begin{gathered} -3x-4y=1 \\ -3x-4(2)=1 \\ -3x-8=1 \\ -3x=1+8 \\ -3x=9 \\ x=\frac{9}{-3} \\ x=-3 \end{gathered}$

Hence, the value of x is -3 and the value of y is 2.