After substituting y=2−xy = 2 - x into 3x−4y=13x - 4y = 1, simplify and solve for xx.

5. Systems of Linear Equations

5. Systems of Linear Equations / Solving Systems of Linear Equations by Substitution / 문제 2

문제 2

After substituting $y = 2 - x$ into $3 x - 4 y = 1$ , simplify and solve for $x$ .

$x equals 9$

$x equals 1$

$x = - \frac{9}{7}$

$x = \frac{9}{7}$