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2 years ago

What is the solution to this equation? 9x - 4(x - 2) = x + 20

Mathematics

1 answer:

ioda2 years ago

7 0

9x - 4(x - 2) =x + 20

We move all terms to the left:

9x -4(x - 2) - (x + 20) = 0

Multiply

9x - 4x -(x + 20) + 8 = 0

We get rid of the parentheses.

9x - 4x - x - 20 + 8 = 0

We add all the numbers and all the variables.

4x - 12 = 0

We move all terms containing x to the left hand side, all other terms to the right hand side

4x=12
x = 12/4
x = 3

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olasank [31]

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Therefore, 1/3 of the can of paint can he used to paint the whole wall.

Hope this helps.

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3 years ago

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sp2606 [1]

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3 years ago

Compute the total cost of the meal to the nearest cent: meal costs $24.62 plus 6% tax and 15% tip.

matrenka [14]

The total cost of the meal is $30.02

Step-by-step explanation:

Given,

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The total cost of the meal is $30.02

Keywords: percentage, sales tax

Learn more about percentages at:

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