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Lelechka [254]
3 years ago
12

Which expression is equivalent to 18x + 45

Mathematics
2 answers:
exis [7]3 years ago
7 0
9(2X+5)
9*2X=18X
9*5=45
18X+45=18X+45

xz_007 [3.2K]3 years ago
6 0
Maybe 3(6x+15)

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Two pieces of equipment were purchased for a total of $4000. If one piece cost $850 more than
ruslelena [56]

The price of less expensive equipment is $1575.

Step-by-step explanation:

Let,

Price of one equipment = x

Price of other equipment = y

According to given statement;

x+y=4000   Eqn 1

x = y+850    Eqn 2

Putting Eqn 2 in Eqn 1

(y+850)+y=4000\\y+850+y=4000\\2y=4000-850\\2y=3150

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\frac{2y}{2}=\frac{3150}{2}\\y=1575

Putting y=1575 in Eqn 2;

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The price of less expensive equipment is $1575.

Keywords: linear equation, substitution method

Learn more about linear equations at:

  • brainly.com/question/11343416
  • brainly.com/question/11416224

#LearnwithBrainly

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