tirying IA teacher asked the class to solve the equation 3(xr+2) = 21. Robert wrote 3x+6= 21 as his first step. Which property did he use? 1) associative property 2) commutative property 3) distributive property 4) zero property of addition

tirying IA teacher asked the class to solve the equation 3(xr+2) = 21. Robert wrote 3x+6= 21 as his first step. Which property did he use? 1) associative property 2) commutative property 3) distributive property 4) zero property of addition

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter10: Quadratic Equations

Section10.3: Solve Quadratic Equations Using The Quadratic Formula

Problem 140E: An architect is designing a hotel lobby. She wants to have a triangular window looking out to an...

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

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A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.

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tirying
IA teacher asked the class to solve the equation 3(xr+2) = 21. Robert wrote 3x+6= 21 as his first step. Which
property did he use?
1) associative property
2) commutative property
3) distributive property
4) zero property of addition

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