We use the properties of equality to rewrite equations and solve equations for a variable. These properties allow us to maintain a balance between the two sides of the equation. Why is it important to keep the two sides of an equation balanced when solving? What other properties do we use to rewrite expressions and equations? Please answer, I need this.

Find the solution of system of equation y= x-4 y=4x+2

In what form is the following linear equation written y=9x+2

The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%