Best Answer

If: x+18 = 2x

Then: x = 18

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Q: What is the algebraic equation for a number plus eighteen equals twice the number?

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5

13 + a + 7 = 5 + b - 20. This assumes the two numbers are different.

1

You cannot write an algebraic expression for that, you need an equation. The equation is n - 6 = 4

If I understand the question correctly, it is when the algebraic equation (or inequality) is true.

Related questions

4x+x+18 = 14

An algebraic number is a complex number which is the root of a polynomial equation with rational coefficients.

5

An algebraic equation or inequality can have a solution, an algebraic expression cannot. If substituting a number in place of a variable results in the equation or inequality being a true statement, then that number is a solution of the equation or inequality.

13 + a + 7 = 5 + b - 20. This assumes the two numbers are different.

1

You cannot write an algebraic expression for that, you need an equation. The equation is n - 6 = 4

To figure that out you first ask, "What number is three fourths of twenty-four?"Then you have to turn that question into an equation. To do this, you break down the question into parts:What number | is | 3/4 | of | 24In algebraic equations, "is" means "equals" and "of" means "times". So you can insert those into the equation to make it mathematically understandable:What number = 3/4 x 24Then you designate "What number" as N, and you have a proper equation:N = 3/4 x 24Now you multiply on the right side of the equation to getN = 18Now if you return to the sentence, you can replace "What number" with "eighteen":Eighteen is three fourths of twenty-four.

If I understand the question correctly, it is when the algebraic equation (or inequality) is true.

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