Question

Solve this system of linear eqarions . Separate the x-and t-shirts values with a comma

2x=96-14y
9x=40-14y

Answer 1

Answer: (-8,8)

Explanation:

`\displaystyle\\\left \{ {{2x=96-14y\ \ \ \ (1)} \atop {9x=40-14y\ \ \ \ (2) \right. \\\\`

Multiply both parts of the equation (1) by (-1):

`\displaystyle\\\left \{ {{-2x=-96+14y} \atop {9x=40-14y \right. \\\\`

Sum these equations:

`7x=-56`

Divide both parts of the equation by 7:

`x=-8`

Let us substitute the value of x=-8 into equation (1):

`2(-8)=96-14y\\\\-16=96-14y\\\\-16-96=96-14y-96\\\\-112=-14y`

Divide both parts of the equation by -14:

`8=y\\\\Thus,\ y=8`

Answer 2

Refer to the photo taken.