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riadik2000 [5.3K]
3 years ago
13

X - 3= - 18 Solve this equation

Mathematics
1 answer:
Simora [160]3 years ago
4 0
X=-15 because you have to add 3 on both sides
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Find the solution to the system of equations: x 3y = 7 and 2x 4y = 8 1. isolate x in the first equation: 2. substitute the value
DIA [1.3K]

The solution to the system of equation are x = -2 and y = 3

<h3>How to find the solution of a system of equation?</h3>

x + 3y = 7

2x + 4y = 8

Let's isolate x in the first equation

x = 7 - 3y

substitute the value of x in the second equation.

Therefore,

2(7 - 3y) + 4y = 8

14 - 6y + 4y = 8

-2y = 8 - 14

-2y = -6

y = -6 / -2

y = 3

Hence,

x + 3(3) = 7

x = 7 - 9

x = -2

learn more on equation here: brainly.com/question/12926248

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2 years ago
Find the product <br> (5x+5)(4x^2-2x-5)
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Answer:

the answer is 5x an exponent at the top of the x +15

4 0
3 years ago
Andy Runs 436.8 meters in 62.08 seconds. If Andy runs at a constant speed,how far does he run in 1 second round your answer to t
I am Lyosha [343]
Hope it helps...
1 second = 7.0
6 0
3 years ago
Describe several real world situations can be modeled by equations of the form Y equals MX plus be or Y equals MX explain how th
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The linear equation represents y = mx + b describes several real world situations such as

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<u>Step-by-step explanation</u>:

Linear equations  y = mx + b.  

m is your rate of change.

b is your constant. This is the initial value of y. The value of y when x is 0.

Finally, y is the thing that depends on x.

Oh right, examples:  

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total cost = 25(cartridges I buy) + 100 or y = 25x + 100

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amount left on card = -$1(songs bought) + 100 or y = -x +100

5 0
3 years ago
Which congruence theorem can be used to prove ABDA - ABDC?
oee [108]

Answer:

SAS(SIDE ANGLE SIDE)

Step-by-step explanation

AB side in ABDA = AB side in ABDC

ABD angle in  ABDA= ABD angle in ABDC

BD side in ABDA = BD side in ABDC

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