To justify solutions to algebraic equations using balancing

I can identify if addition, subtraction, multiplication or division is required to solve an equation

I can use the correct operation to solve an equation

I can write a clear solution that justifies the value of a pronumeral

In this equation, to get x 'by itself' we need to remove the -2

Because the opposite of -2 is +2 we add 2 to both sides

This gives us the answer x = 5

(ignore the line through the = signs)

In this equation, to get y 'by itself' we need to remove the 5 (which is dividing x).

Because the opposite of dividing 5 is multiplying by 5 we multiply both sides by 5

This gives us the answer x = 50

In this equation, to get x 'by itself' we need to remove the times 4

Because the opposite of times 4 is dividing by 4 we divide both sides by 4

This gives us the answer x = 2