All categories

2 years ago

HELP Solve the following systems using the elimination method. 5x+2y = -16 4x-2y = 16

Mathematics

2 answers:

velikii [3]2 years ago

3 0

Answer:

x= 0 , y= -8

Step-by-step explanation:

Add the 2 equations together, you would get:

9x = 0

Divide both sides by 9:

x = 0/9

x=0

Substitute the value of x in one of the equations to get the value of y, I picked the first one (5x+2y = -16)

5(0) +2y = -16

0+2y = -16

2y = -16

Divide both sides by 2:

y = -8

Lilit [14]2 years ago

3 0

2y - 2y (can Lea each other our)
Add 5x + 4x = 9x
-16 + 16 = 0
9x / 0
X=0

You might be interested in

Convert 2 years 3 months into years?

Gnesinka [82]

Answer:

2.25 Years

Step-by-step explanation:

We know that a year has 12 months. So, $\frac{3}{12}=0.25$ . We add this to 2 to get 2.25.

8 0

3 years ago

Read 2 more answers

Find the equation of a line that passes through the points (-1,5) and (3,-3). Write the equation in slope-intercept, point-slope

Vesnalui [34]

$\bf (\stackrel{x_1}{-1}~,~\stackrel{y_1}{5})\qquad 
(\stackrel{x_2}{3}~,~\stackrel{y_2}{-3})
\\\\\\
slope = m\implies 
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-3-5}{3-(-1)}\implies \cfrac{-3-5}{3+1}\implies -2
\\\\\\
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-5=-2[x-(-1)]
\\\\\\
\boxed{y-5=-2(x+1)}\implies y-5=-2x-2\implies \boxed{\stackrel{slope-intercept~form}{y=-2x+3}}
\\\\\\
\boxed{\stackrel{standard~form}{2x+y=3}}$

6 0

3 years ago

If 36/5x=3/5 find x

amm1812

Answer:

X= 12

Step-by-step explanation:

36/5x =3/5(cross multiplication)

180=15x

divide by 15 both sides

X = 12

6 0

3 years ago

An entire commercial break is 3 and 6/10 minutes if each commercial takes 0 and 6/10 minutes how many commercials will be play

Nikolay [14]

It would play 6 commercials per minute

5 0

3 years ago

Translate into equation

bearhunter [10]

Let x= smaller#
Let 2x-5=larger#

X+2x-5

7 0

3 years ago