# A photograph

A photograph will stick to a white square letter with a x cm length. The photo is 3/4 x cm long and 20 cm wide than the width of the paper. The surface of the remaining paper surrounding the photograph is 990 cm

^{2}. Find the size of paper and photo.### Correct answer:

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#### You need to know the following knowledge to solve this word math problem:

**algebra**- quadratic equation
- equation
- expression of a variable from the formula
**planimetrics**- area of a shape
- square
- rectangle

#### Units of physical quantities:

#### Grade of the word problem:

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