3 years ago

Solve the system of equations using elimination. Type your solution.

Mathematics

1 answer:

drek231 [11]3 years ago

8 0

Answer:

x= 3 y= -1

Step-by-step explanation:

5(-3x-2y=-7) = -15x-10y= -35

-2(4x-5y=17) = -8x+10y= -34

Get rid of the y to get -23x=-69

Divide by the -23 to get x=3

Plug the 3 into the equation (-3)(3)- 2y= -7

Solve for y to get y= -1

You might be interested in

If the Jones family owned a $300,000 home, a $12,000 car, and had $150,000 in other assets, what would be their net worth? $462,

Keith_Richards [23]

Answer:

462,000

Step-by-step explanation:

300,000+150,000+12,000=462,000

4 0

2 years ago

A line passes through the point (-9,3) and has a slope of -2/3?

saveliy_v [14]

The point-slope form:

$y-y_1=m(x-x_1)$

We have the slope m = -2/3 and the point (-9, 3). Substitute:

$y-3=-\dfrac{2}{3}(x-(-9))$

$y-3=-\dfrac{2}{3}(x+9)$ <em>use distributive property</em>

$y-3=-\dfrac{2}{3}x-\dfrac{2}{3}\cdot9$

$y-3=-\dfrac{2}{3}x-(2)(3)$

$y-3=-\dfrac{2}{3}x-6$ <em>add 3 to both sides</em>

$\boxed{y=-\dfrac{2}{3}x-3}$

5 0

3 years ago

Add. −5/12+(−3/4) Enter your answer in the box as a fraction or mixed number in simplest form.

brilliants [131]

The answer is 1/2 cuz of simplyfing

5 0

3 years ago

3(a-7b)+2(4a+3b)+23(a-b)

Nesterboy [21]

Answer:

3a-21b+8a+6b+23a-23b.

3a+8a+23a-21b+6b-23b.

34a-38b.

7 0

4 years ago

Read 2 more answers

wendy needs to select three different pizza toppings out of twelve available toppings. the number of three different three-item

Ronch [10]

She can make 4 different pizzas with having different toppings. But if they can be the same toppings for different pizzas then she has 36 varieties for her toppings on her pizza

4 0

3 years ago

Read 2 more answers