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LiRa [457]
3 years ago
11

What is the value of x in the equation 3x – y = 18, when y = 27?

Mathematics
2 answers:
lora16 [44]3 years ago
7 0
3x-27=18
3•9=27
So, 3•9-27=18
27-27=18
27+18
45/3=15
3•15-27=18
45-27=18
The answer is, x=15
(This might be a little complex but this way is easy for me)
atroni [7]3 years ago
3 0
<span>3x – y = 18 

We start by plugging in 27 for y. The goal is to isolate x by itself to solve for x.

3x - 27 = 18

Then we add 27 to both sides of the equation

3x = 45

Lastly, we divide both sides by 3 to finally isolate x by itself and solve.

x = 15</span>
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the theaters sell tickets for a concert. tickets for the lower level are $35 each and tickets for the upper level are $25 each.
nasty-shy [4]
Equation 1 for tickets sold:
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4 0
3 years ago
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Arthur has a balance of $2330 on his credit card, which he plans to pay off by
dybincka [34]

Answer:

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6 0
3 years ago
Plz help i don’t understand this type of math
Serga [27]
QRS = DRS + QRD
167 = x + 143 + x + 30
167 = 2x + 173
-2x = 173 - 167
-2x = 6
x = 6/-2
x = -3

DRS = x + 143
= (-3) + 143
= 140
7 0
3 years ago
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