2(a+2b) -a-2b
2a+4b-a-2b
= a+2b expression is equivalent to 2 (a + 2 b) minus a minus 2 b.
What is a math expression?
An expression is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division. The structure of an expression is: Expression is (Number/Variable, Math Operator, Number/Variable)
How do you find expression in math?
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
Learn more about expression in math here: https://brainly.com/question/723406
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