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jasenka [17]
3 years ago
12

I would appreciate some help with this question ASAP!

Mathematics
1 answer:
Flauer [41]3 years ago
7 0

Answer:

(4,2 1/2)

Step-by-step explanation:

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Solve the system of equations by substitution.<br> y = 8<br> X – 2y + 3z = 3<br> 3x + 3y – 2z = 15
Dafna1 [17]

Answer:

Solving systems of equations with 3 variables is very similar to how we solve systems with two variables. When we had two variables we reduced the system down

to one with only one variable (by substitution or addition). With three variables

we will reduce the system down to one with two variables (usually by addition),

which we can then solve by either addition or substitution.

To reduce from three variables down to two it is very important to keep the work

organized. We will use addition with two equations to eliminate one variable.

This new equation we will call (A). Then we will use a different pair of equations

and use addition to eliminate the same variable. This second new equation we

will call (B). Once we have done this we will have two equations (A) and (B)

with the same two variables that we can solve using either method. This is shown

in the following examples.

Example 1.

3x +2y − z = − 1

− 2x − 2y +3z = 5 We will eliminate y using two different pairs of equations

5x +2y − z = 3

Step-by-step explanation:

6 0
3 years ago
I need help with this please​
Katen [24]

0.25 but half but 26:26 Its same but half of half ....

8 0
2 years ago
I cant do this anymore
cricket20 [7]
I can’t either Stay strong
7 0
2 years ago
I was reading a book of 560 pages. On Sunday, I was able to finish 1/4pages of the book. How many pages do I read on Sunday?
kolbaska11 [484]

Answer:

140

Step-by-step explanation:

560. 1

____. ÷. ______

1. 4

Cross out the numbers that are divisible

560/4 = 140

5 0
2 years ago
The perimeter of a rectangle garden is 348 feet if the length of the garden is 93 feet what is the width?
Ber [7]
The width is 81 feet. 
93(2)+81(2)=348
3 0
3 years ago
Read 2 more answers
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