3 years ago

-7x2y=-13 x-2y=11 Slove useing subtract

1 answer:

7 0

-7x+2y=-13
x-2y=11
add them euations

-7x+2y=-13
<u>1x-2y=11 +</u>
-6x+0y=-2

-6x=-2
divide both sides by -6
x=1/3

sub back
x-2y=11
1/3-2y=11
minus 1/3 both sides
-2y=10 and 2/3
divide both sides by -2 (or times both sides by -1/2)
y=-5 and 1/3

x=1/3
y=-5 and 1/3
(1/3,-16/3)

You might be interested in

Two friends share 76 blueberries. To count the blueberries they put them

Usimov [2.4K]

In there mouth and they ate them

6 0

3 years ago

What measure is represented by 17 feet in the figure below?

Tom [10]

Answer: The answer is the diameter.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Jen thought of a rule, and made an in-out table for it. On the coordinate plane, Jen recorded her rule as points, but then she a

Kryger [21]

Answer:

y = (1/2)x + 3

Step-by-step explanation:

The points are separated by 1 vertical unit for each 2 horizontal units, so the slope of the line through them is ...

slope = vertical change / horizontal change = 1/2

There is a point on the y-axis at y=3 where x=0, so we know the y-intercept of the line is 3. Then, in slope-intercept form, the equation of the line can be written ...

y = slope · x + y-intercept

y = (1/2)x + 3

8 0

3 years ago

The length of a rectangle is 3 cm greater than the

Nitella [24]

I wowowowowowowowowowow

7 0

3 years ago

I need to know the answer ASAP not even an explanation jus the answer

kotykmax [81]

Answer:

i believe the answer is the second.

5 0

3 years ago