WHY must the same operation be performed on both sides of an equation?

Suppose you are going to graph the data in the table. minutes temperature (°c) 0 -2 1 1 2 3 3 4 4 5 5 -4 6 2 7 -3 what data should be represented on each axis, and what should the axis increments be? x-axis: minutes in increments of 1; y-axis: temperature in increments of 5 x-axis: temperature in increments of 5; y-axis: minutes in increments of 1 x-axis: minutes in increments of 1; y-axis: temperature in increments of 1 x-axis: temperature in increments of 1; y-axis: minutes in increments of 5

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73

Select the point that is a solution to the system of inequalities. y< =-x+3 y=x^(2)-3x