Solve the following system of equations. 2x-3y=8 -2x+6y=-20

1 answer:

3 0

Solve the following system:
{2 x - 3 y = 8 | (equation 1)
{6 y - 2 x = -20 | (equation 2)

Add equation 1 to equation 2:
{2 x - 3 y = 8 | (equation 1)
{0 x+3 y = -12 | (equation 2)

Divide equation 2 by 3:
{2 x - 3 y = 8 | (equation 1)
{0 x+y = -4 | (equation 2)

Add 3 × (equation 2) to equation 1:
{2 x+0 y = -4 | (equation 1)
{0 x+y = -4 | (equation 2)

Divide equation 1 by 2:
{x+0 y = -2 | (equation 1)
{0 x+y = -4 | (equation 2)

Collect results:
Answer: {x = -2
{y = -4

You might be interested in

HELPPPPPPPPPPP but ty to those who have helped me after every question is answerred and if i get a good grade im giving away 50

mr Goodwill [35]

I don’t know what the answer options are so here I go guessing:

M<4 is the opposite but has the same degree
M<6 is the same as M<2
M<8 is the opposite but has the same degree
Any of these are correct. I’m just not sure what the options were/are.

5 0

2 years ago

Read 2 more answers

Find the value of f(-6). y = f(x) Please help

Gala2k [10]

Answer:

Step-by-step explanation:

The question is asking what the output is when you input -6 for x. You get the point (-6,4)

7 0

3 years ago

How do you simplify these expressions

Oxana [17]

Answer is given above

4 0

4 years ago

Solve each system. y=2x+6 y= -3x+16

RoseWind [281]

$y=2x+6\\y= -3x+16\\\\2x+6=-3x+16\\2x+6+3x-6=-3x+16+3x-6\\5x=10\ /:5\\x=2\\\\y=2x+6\ \ \ \Rightarrow\ \ \ y=2\cdot2+6=4+6=10\\\\Ans.\ \ x=2\ \ and\ \ y=10$

7 0

3 years ago

Read 2 more answers

Plz solve for the area, questions 10,11,and 12 plz

marishachu [46]

Answer:

10-52.85ft squared 11-144.84centimeters squared 12-304meters squared

Step-by-step explanation:

A-bh/2 10-7*15.1=105.7/2=52.85ft squared

A-bh 11-10.2*14.2=144.84cenitmeters squared

A-bh 20*15.2=304meters squared

4 0

3 years ago