Question

Mr. Berger assigned the following system of equations to be solved for homework.

2 x minus 3 y = negative 12. 4 x + y = negative 10.

Which is the x-coordinate of the correct solution?
x = negative 3
x = negative one-fifth
x = StartFraction 9 Over 7 EndFraction
x = 2

Answer 1

A: x=-3

Explanation:

Answer 2

x = -3

Explanation:

2x - 3y = -12 ------------------(i)

4x + y = -10 -------------------(ii)

Multiply the (ii) equation by 3 and then add the two equations. So, now y will be eliminated and you will get the value of x

(i) 2x - 3y = -12

(ii) * 3 12x + 3y = -30

14x = - 42

x = -42/14

x = -3