Answer:
a=-2
Step-by-step explanation:
Combine common variables on both sides.
3a-7a-28=10a
-4a-28=10a
Add variables to other side
-28=14a
Divide each side by 14
a=-2
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Step-by-step explanation:
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Answer:
Marcus rented 3 video games.
Step-by-step explanation:
Let "x" be the number of games he rented.
The equation is 4 + 6x = 22
Solve the equation.
4 + 6x = 22
Subtract 4 from both sides of the equation.
6x = 18
Divide both sides by 6.
x = 3
Marcus rented 3 video games.
Hope you will understand the concept.
Thank you.
<u>Answer:</u>
- For 15 pens, the cost is $7.2
<u>Step-by-step explanation:</u>
<u>We know that:</u>
<u>Work:</u>
Divide the RHS:
- => 1 pen = 3.84/8
- => 1 pen = 0.48
Multiply the RHS:
- => 15 pens = 0.48 x 1
- => 15 pens = $7.2
Hence, <u>for 15 pens, the cost is $7.2</u>
Hoped this helped.