Algebra formulae for solving
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TO SOLVE LINEAR EQUATION YOU ADD SUBTRACT MULTIPLY DIVIDE ON BOTH SIDE OF EQUATION BY THE NUMBERS AND VARIABLES SO THAT YOU END UP WITH A SINGLE VARIABLE
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a^2-b^2=(a-b) (a+b)
(a+b)^2=a^2+2ab+b^2
a^2+b^2=(a-b)^2+2ab
(a-b)^2=a^2-2ab+b^2
(a-b)^3=a^3-3a^2b+3ab^2-b^3
(a+b+c)^2=a^2+b^2+c^2+2ab+2ac+2b
(a-b-c)^2=a^2+b^2+c^2-2ab-2ac+2bc
(a+b)^2=a^2+2ab+b^2
a^2+b^2=(a-b)^2+2ab
(a-b)^2=a^2-2ab+b^2
(a-b)^3=a^3-3a^2b+3ab^2-b^3
(a+b+c)^2=a^2+b^2+c^2+2ab+2ac+2b
(a-b-c)^2=a^2+b^2+c^2-2ab-2ac+2bc
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