This exercise contains all three types of simultaneous equations. Look for the simplest way to solve the following equations:

Question 4

 (a) $$4x - 3y = 36$$ (b) $$5x - 2y = 0$$ (c) $$6x + 3y = 15$$ (d) $$7x + 3y = 38$$ $$3x - y = 22$$ $$15x + 4 = 50$$ $$5x - 3y = 29$$ $$4x + 2y = 20$$ (e) $$5x - 3y = 60$$ (f) $$2x - y = -8$$ (g) $$2x - 7y = 20$$ (h) $$8x - 5y = 18$$ $$4x + 6y = 6$$ $$3x + 5y = 27$$ $$4x + 3y = -11$$ $$4x + 7y = -29$$ (i) $$21x - 4y = 30$$ (j) $$7x - 4y = 2$$ (k) $$4x - 3y = -8$$ (l) $$10x - 2y = 5$$ $$7x + 3y = 23$$ $$4x + 7y = 3$$ $$8x + 4y = 14$$ $$5x + 3 = 1.5$$