equation is very important concept in our live.because we use it in every time.some of children find it hard to understand ,so it is an easy way to understand it . balance scale is very useful tool to understand it.
in the picture above 12g + 50g = 62g so
Xg + 50g = 62g then X = 12g .
example :
2g + Xg = 10g so if we put 2g + Xg in side and 10g in the other side in the balance scale then to make balance X should be 8g
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