In figure 1, left-hand side (LHS) and the right-hand side (RHS) of the weighing machine are equal to each other. If we add 2 on the RHS, as shown in figure 2, what should we do to equalise LHS and RHS again?
Is it necessary to have a 90° angle in rhs congruence rule or by having equal hypotenuse and equal side we can apply RHS congruence rule?
The first step that we will use to separate variables and constants in the linear equation 2x + 3 = 7 is