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Online Quiz (Worksheet A B C D)

Questions Per Quiz = 2 4 6 8 10

Grade 7 - Mathematics
6.18 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.x - 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 - 3/4 = 5/4
Answer:

Q 2: x - 5/2 = 5/6
Answer:

Q 3: x - 9/4 = 3/2
Answer:

Q 4: x - 14/3 = 3
Answer:

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Question 6: This question is available to subscribers only!


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