All categories

3 years ago

Solve the simultaneous equation

Mathematics

2 answers:

vampirchik [111]3 years ago

3 0

Answer:

Step 1: Add 3y to both sides.

2x−3y+3y=−8+3y

2x=3y−8

Step 2: Divide both sides by 2.

3y−8

y−4

Answer:

x= 3/2 y -4

x+3y=14

Step 1: Add -3y to both sides.

x+3y+−3y=14+−3y

x=−3y+14

Answer:

x=−3y+14

Step-by-step explanation:

Stolb23 [73]3 years ago

3 0

Answer:

X=2, y=4

Step-by-step explanation:

Elimination method:

2x-3y=-8 equation 1

x+3y=14 equation 2

3x+0=6 add above 2 equations

3x=6

x=2

solve for y by substituting x in either equation

x+3y=14

2+3y=14

3y=12

y=4

Substitution method:

2x-3y=-8 equation 1

x+3y=14 equation 2

x=14-3y isolate x in equation 2

2(14-3y)-3y=-8 substitute value of x from equation 2 into equation 1

28-6y-3y=-8

-9y=-36

y=4

solve for x by substituting value of y into either equation

2x-3y=-8

2x-3(4)=-8

2x-12=-8

2x=4

x=2

You might be interested in

9th grade math please help its urgenttt

vovangra [49]

Answer:

Step-by-step explanation:

observe

$2x^2-5x+5=0\\x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\\=\frac{5\pm \sqrt{(-5)^2-4(2)(5)}}{2(2)}\\=\frac{5\pm \sqrt{-15}}{4}\\=\frac{5\pm i\sqrt{15}}{4}$

3 0

3 years ago

Read 2 more answers

Find the area bounded by y=ln x, x=2, x=4 and the x-axis.

Advocard [28]

4 sq.units

area of a rectangle = length × breadth

length = 4units

breadth = 1units

A = l × b

= 4 × 1

= 4 sq.units

<h3>HOPE IT HELPS U </h3>

IF YES 

MARK ME AS THE BRAINLIEST

8 0

4 years ago

Write the equation of a line in - form that contains the point (- 1, - 2) and is perpendicular to the line y = 5x - 10 degrees

galina1969 [7]

Answer:

y+2= -1/5(x+1)

Step-by-step explanation:

if lines are perpendicular their slopes are negative reciprocal

y=mx+b where m is the slope

y=5x-10 has the slope 5 so a perpendicular line will have slope -1/5

equation point slope form

(y-y1) = m(x-x1) where m is slope, and (x1,y1) any point that belongs to the line

y+2= -1/5(x+1)

3 0

3 years ago

If You Have 1 Kilogram,Then How Much Is It In Ounces?

Eduardwww [97]

If you have 1 kilogram of mass, its weight depends on where you take it.
On the surface of the moon, it weighs about 5.84 ounces. But on Earth,
it weighs about 35.3 ounces.

7 0

3 years ago

Olivia is hosting a dinner party in her garden. She has hired caterers to serve dinner. The caterers charge a fee to set-up the

natka813 [3]

Answer:

Olivia is hosting a dinner party in her garden. She has hired caterers to serve dinner. The caterers charge a fee to set-up the dinner and $3 per person attending. The cost for 10 dinner guests is $70. Write an equation showing the cost of the dinner party as a function of the number of guests

Step-by-step explanation:

5 0

3 years ago