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5 + 2 x 10 = 25 NOT 70.
In mathemetics multiplication/division take precedence over addition/subtraction.
So in such as situation as above you multiply the '2' & '10' together first .
2 x 10 = 20
Then add the five
20 + 5 = 25
Maths calculators are programmed in this way.
However, if the calculation was written as
(5 + 2) x 10 (Note the brackets) , then the mathematical rule is to do INSIDE the brackets first.
Hence
5 + 2 = 7
Then multiply
7 x 10 = 70
NB Note the difference in answers.
NNB It is critical on how to do the calculation, depending on the given symbols.
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What is x plus 2x plus 14 equals 5x plus 2?
x+2x+14=5x+214-2=5x+2x+x10=8x10/8=xx=5/4 ans.
2 plus 2 plus 2 plus 2 plus 2 plus 2 plus 5 plus 5 plus 5 plus 5 plus 5 plus 55 plus?
Just realize that multiplication is repeated addition. So you have 6 twos and 5 fives. that is 12+25 and now add 55 The total is 92
What is 2 plus 5 plus 3X2 plus 4 plus 2 plus 17 plus 2-13 plus 5 equals?
2 + 5 + (3 x 2) + 4 +2 + 17 + (2 - 13) + 5 = 30
Does x plus 5 divided by 5 plus x equal 1?
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How do you convert centimeters and decemeters to meters?
To convert to meters, x10-2 for centimeters and x10-1 for decimeters.
