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brilliants [131]
3 years ago
12

How do you solve 9x-7= -7 for 2 step equations?

Mathematics
2 answers:
Alinara [238K]3 years ago
8 0
You add +7 to both sides and then divide by 9 to get the x alone.
nirvana33 [79]3 years ago
3 0
Step 1: Add 7 to both sides of the equation.
9x - 7 = -7 
     +7    +7  
9x = 0
Step 2: Divide both sides by 9.
<span><span>9x/9 </span>= 0/9</span><span>x = 0
Therefore, your answer is x = 0

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Answer:

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Please help! I will mark you as brainliest!
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Step-by-step explanation:

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If a car dealership buy as car for $9000, and wants to make a 45% profit, how much do they need to sell the car for? ​
Degger [83]

Answer:

A car dealership needs $13050 to sell the car to earn the 45% profit if a car dealership buys a car for $9000.

Step-by-step explanation:

Car cost = $9000

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Thus,

Profit amount = 45% of 9000

                       = 45/100 × 9000

                       = 0.45 × 9000

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In order to determine how much a car dealership needs to sell the car to earn the 45% profit, all we need is to add the profit amount i.e. $4050, and the car cost i.e. $9000.

i.e.

Car cost + Profit amount = $9000 + $4050

                                         = $13050

Therefore, a car dealership needs $13050 to sell the car to earn the 45% profit if a car dealership buys s car for $9000.

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