9x - 2x + 3 = 3x + 4x + 3
Subtract 3 from both sides:
9x - 2x + 3 - 3 = 3x + 4x + 3 - 3
Which then:
= 9x - 2x = 3x + 4x
Add similar elements: 9x - 2x = 7x
7x = 3x + 4x
Add similar elements: 3x + 4x = 7x
7x = 7x
The, subtract 7x from both sides
7x - 7x = 7x - 7x
Simplify,
0 = 0
So, both sides are equal.
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Answer: the sides of the square are 16cm in length
Answer:
See explanation
Step-by-step explanation:
Depends on what you round the numbers to, but let's say you round 102.3 to the nearest hundred (100) and 4.7 to the nearest one (5). We can easily solve 100/5 and get the answer 20.
