Simple equation

Simple equation

Concept of ​Equation

Solve equation

Equation is just like a balance.
We have to make things equal from both sides.
L.H.S. = x + 3 apples
R.H.S. = 10 apples
How to write an equation to find x?

Solve equation

In the figure, the perimeter of the trapezium is 46 cm. Find x.

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Example 1

​What we need to do?

In the figure, the perimeter of the trapezium is 46 cm. Find x.

​

Example 1

​What we need to do?

First: think why give us the perimeter? How can we use it?


Second: think can we calculate the perimeter using x? --> YES
Because all the sides are given

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In the figure, the perimeter of the trapezium is 46 cm. Find x.

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Example 1

Remember this?

Third: think how can we add up things that equal to 46?
Now 46 is our right hand side

In the figure, the perimeter of the trapezium is 46 cm. Find x.

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Example 1

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