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### Grade 7 - Mathematics6.18 Solution of Simple Equations - II

 Example: Solve the equation: x-1/2 = 3/2. Solution: The unknown quantity is on the L.H.S. of the equation, and 1/2 has been subtracted from it. To remove 1/2 from L.H.S., we must do the inverse operation of subtraction, i.e., addition. Hence adding 1/2 to both sides of the equation, we get: x - 1/2 + 1/2 = 3/2 + 1/2 x = 3/2 + 1/2 x = 4/2 x = 2 Verification: Substituting x=2 in the equation, L.H.S.Þx - 1/2 = 2 - 1/2 = (4-1)/2 = 3/2 = R.H.S. \x = 2 is the solution. Directions: Solve the following equations. Also write at least ten examples of your own and solve for the unknown variable.
 Q 1: x - 9/4 = 3/2Answer: Q 2: x - 5/2 = 5/6Answer: Q 3: x - 7/9 = 1/3Answer: Q 4: x - 2/3 = 1/3Answer: Question 5: This question is available to subscribers only! Question 6: This question is available to subscribers only!