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# Basic Algebra | IntMath forum

• Addition and Subtraction of Algebraic Expressions [Pending...]
simplify −3[−5(m − 2n) + 4n] + sqrt(4n)
• How do I calculate the length of wire on a tubular ceramic form? [Solved!]
I need to calculate the total length of wire required for a wire wound resistor...
• Manipulating algebra fractions [Solved!]
when solving the right hand side of an equation (fluid flow ) from sqrt(25/(1-(x^4/0.1^4))) goes to -sqrt(25/(1-10000X^4))` this...
• Absolute value [Solved!]
If x = -|w|, which of the following MUST be true A. x=-w B. x=w C. x^2=w D. x^2=w^2 E....
• order of operations [Solved!]
As the kids always say - this is probably a stupid question - but how...
• Reciprocals [Solved!]
I am doing some problems with amateur radio where they ask for the "reciprocal of...
• Age problem [Solved!]