When figuring out the amount of mulch would be needed for Alex's back yard, he created an equation that

Mathematics

1 answer:

soldier1979 [14.2K]3 years ago

7 0

Answer:

Alex will need 14 bags

Step-by-step explanation:

B= 4(2x+7)+3(2x+7)

and

2x+7=2

First, we should solve the second equation to obtain x:

2x+7=2

2x=2-7

x= -5/2

Then, we use this answer to calculate B:

B=4(2(-5/2)+7)+3(2)

B=4(-5+7)+6

B=4(2)+6

B=8+6

B=14

Alex will need 14 bags

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Original Equation :
$\frac{-3}{v} = -6$

New Equation {Added Multiply Both Sides by V} :
$\frac{-3}{v} v=-6v$

Solution {New Equation Solved} :
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Now we'll switch sides to get v on the left side of the equation which is generally where we always want the variables to be located in these types of equations.

Old Equation :
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New Equation {Switched} :
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Now we'll divide both sides by v to get v on its own.

Old Equation :
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New Equation {Added Divide Both Sides by V} :
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Solution {New Equation Solved} :
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