yocelincelestino101
yocelincelestino101 yocelincelestino101
  • 02-06-2021
  • Mathematics
contestada

Is this right and can someone show me the explanation plz?and how to do the problem I have to show my work

Is this right and can someone show me the explanation plzand how to do the problem I have to show my work class=

Respuesta :

kkozume27
kkozume27 kkozume27
  • 02-06-2021

Answer:

yes it is.

x = 4 and y = -3

Step-by-step explanation:

Solve simultaneously using elimination method:

equation 1 - equation 2

3x + y = 9 equation 1

-2x + y = 5 equation 2

_________

x = 4

plug 4 into any of the 2 equations and solve for y.

3(4) + y = 9

12 + y = 9

12-12 + y = 9-12

y = -3

Answer Link

Otras preguntas

what is the lining of the uterus break down
a quilt pattern makes a quilt that is 48 inches by 60 inches.if you want to make the quilt 1/3 smaller how wpuld you find the new dimensions? what would the new
You and 3 friends order a pizza, 4 large drinks, and a loaf of cheese bread. You split the cost evenly with your friends. What order of operations would you use
What is the molar mass of CaSO4 ?
six friends share 2 pizzas equally how much of a pizza does each friend get
Which statement describes how work and power are similar? (2 points) You must know force and distance to calculate both. You must know energy and force to calcu
Tell what the following people are going to do tomorrow, by changing the present tense verb to the correct form of the future tense. Los estudiantes y yo estam
On a true/false test, the ratio of true questions to false questions is 3 to 7. What is the ratio of true questions to total questions?
which of the following fractions does not name the same point on the number line? a.3/4 b.6/8 c.5/6 d.9/12
Clouds that form in flat layers are called?