Very simple ~

(Graphic Example 3)

S=a.a or the square of a (small 2 can't be typed out) S= area.

C=a.4 or 4a, and c = circumference.

The square area is the square of s = a * a = a

The circumference of a square is C=a*4=4a.

(Balance Example 3)

Police+Super = Today

x+0.64= 14. 14

X+0.64-0.64 (balance principle) = 14. 14-0.64.

X= 13.5 (slightly complicated equation example 3) x+2.4x=5. 1.

Solution: (1+2.4)x=5. 1 indicates the distribution law of 1x+2.4x=5. 1

3x=5. 1 indicates the sum of 1+2.4.

3x*3=5. 1*3 (no division sign, only *) This is the principle of balance and should be understood.

X= 1.5

Note: The equal sign may be crooked.