3 years ago

How do you solve this equation -6x + 7y =13 and -6x +8y =20 using elimination

1 answer:

ohaa [14]3 years ago

8 0

Answer:

x=6,y= 7

Step-by-step explanation:

-6x +7y= 13

-6x+8y=20

-y = -7

divide through by -1

y =7

sub y= 7 in equation 1

then x= 6

You might be interested in

PilotLPTM [1.2K]

If i had the whole question i would answer

4 0

3 years ago

Phantasy [73]

\left[A \right] = \left[ \frac{ - \left( 5 - 3\,x - 2\,x^{2} - 2\,x^{3}\right) }{-1-x}\right][A]=[−1−x−(5−3x−2x2−2x3)] I hope helping this answer

6 0

3 years ago

HACTEHA [7]

66.5cm

Split the shape into a square and triangle and find the area separately

Square: 8*7=57
Triangle: 7*3/2 = 10.5
=66.5

7 0

3 years ago

LekaFEV [45]

The answer is D.1/10

3 0

3 years ago

elena-14-01-66 [18.8K]

I'm going to put it into decimals because it is easier.

3.5*1.5=5.25 or $5 \frac{1}{4}$

Hope that helps

3 0

3 years ago