Simplify $\frac{8x}{12}+\frac{10x}{12}$8x12+10x12
Simplify $\frac{y}{11}-\frac{9y}{11}$y11−9y11
Simplify $\frac{17y}{20}+\frac{14y}{20}$17y20+14y20
Simplify $\frac{7x}{3}-\frac{5x}{3}$7x3−5x3
Form and solve linear equations and inequations, quadratic and simple exponential equations, and simultaneous equations with two unknowns
Generalise the properties of operations with rational numbers, including the properties of exponents
Apply algebraic procedures in solving problems