Question

substitution: y=3-4x 6x-5y= -2​

Answer 1

Answer:

x = $\frac{1}{2}$ ; y = 1

Step-by-step explanation:

y = 3 - 4x (1)

6x - 5y = -2 (2)

Substituting (1) in (2),

6x - 5(3 - 4x) = -2

6x - 15 + 20x = -2

26x = 15 - 2

26x = 13

∴ x = $\frac{13}{26}$

  x = $\frac{1}{2}$

Substituting x = $\frac{1}{2}$ in (1),

y = 3 - 4( $\frac{1}{2}$)

y = 3 - 2

∴ y = 1