•SOLVING EQUATIONS •CLAER OUT ANY FACTIONS BY MULTIPLY-LYING EVERY TERM BY THE BOTTOM PARTS •ADD OR SUBTRACT THE SAME VAULE FROM BOTH SIDES •DIVIDE EVERY TERM BY THE SAME NONZERO VALUE •COMBINE LIKE TERMS •FACTORING •EXPANDING (THE OPPOSITE OF FACTORING) MAY ALSO HLEP
3x - 6= 9
EX. Solve 3x-6 = 9 3x=9+6 x= (9+6) / 3 •Now we have x = something and a short calculation reveals that x = 5
3x = 9+6 x = (9+6) / 3
• Let's Learn about (Equations) • The equations of number says how may times to use the number in a multiplication. •In 8(20 the 2 says to use 8 twice in a multiplication so 8 (2) = 8 x 8 = 64 •In word : 8 (2) could be called 8 to the power 2 or 8 to the second power or simply 8 squared.