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3 years ago

How to do this question?

Mathematics

1 answer:

diamong [38]3 years ago

3 0

Remark

Drawing that diagram was a very good idea. If you can picture something happening, you are half way there. I tend to use a table, but the diagram will come to the same thing.

Olivia Dawn

Start 176 80

<u>Donate x x Subtract</u>

What's left 176 - x 80 - x

Equation

176 - x = 5*(80 - x) Olivia had 5 times as many books as Dawn did. Remove the brackets.

Solution

176 - x = 400 - 5x Add 5x to both sides

176 + 5x - x = 400 Combine terms on the left

176 + 4x = 400 Subtract 176 from both sides

4x = 400 - 176 Combine terms on the right.

4x = 224 Divide by 4

x = 224/4

x = 56 Answer

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Step-by-step explanation:

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