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We also use INVERSE OPERATIONS. The inverse of multiplication is division. The inverse of division is multiplication. The inverse of subtraction is addition. The inverse of addition is subtraction. Example 1 4 x 4x = 12 4 4 + x - 9 9 = = - 9 21 3 solution divide both sides by 4 subtract 9 from both sides Example 2 2p - 3 = 27 2p = 30 2 p = 15 + 3 +3 2 add 3 to both sides solution divide both sides by 2 Your turn! ÷ y = 5y - 15 = 20 5y = Fill in the missing numbers. + ÷ + Your turn! ÷ y = 3y + 8 = 23 3y = Fill in the missing numbers. − ÷ − Your turn! ÷ y = 4y - 1 = 15 4y = Fill in the missing numbers. + ÷ + Solve these two step equations. 6y + 7 > 37 6y > y > Solve these two step equations. 8y - 2 = 14 8y = y = Solve these two step equations. 4y + 3 = 51 4y = y = Solve these two step equations. 5y - 1 = 29 5y = y = Solve these two step equations. 3y + 14 = 23 3y = y = Solve these two step equations. 8y - 11 = 21 8y = y = Solve these two step equations. 7y - 9 = 54 y = = Solve these two step equations. 2y + 7 = 17 y = = Solve these two step equations. 4y - 8 = 32 y = = Solve these two step equations. 5y + 3 = 18 y = = Solve these two step equations. 7y + 9 = 44 y = = Solve these two step equations. x 2 x 2 + 3 < 4 − y < < − Solve these two step equations. x − 4 3 x − 4 + ≥ 2 x ≥ ≥ + Solve these two step equations. x 3 x 3 − 5 ≥ 2 + y ≥ ≥ + Solve these two step equations. x − 2 5 x − 2 + < 2 x < < + |