Question

6x-5y=39 and 2x+3y=-1 elimination.​

Answer 1

Answer:

x = 4

y = -3

Step-by-step explanation:

6x - 5y = 39 ------ (i)

(2x + 3y = -1) × 3 ------ (ii)

6x + 9y = -3 ----- (iii)

Using Elimination method,

Subtract (i) - (iii)

6x - 5y - (6x + 9y) = 39 - (-3)

6x - 5y - 6x - 9y = 39 + 3

-14y = 42

$y=\frac{42}{-14} \\\\y=-3$

6x + 9y = -3

6x + 9(-3) = -3

6x -27 = -3

6x = -3 + 27

6x = 24

$x=\frac{24}{6} \\\\x=4$