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3x+2y=8 (1)2x+5y=-2 (2)So you need to have a common multiple of either x or y in this example I’ll equate the x of both equations so I’ll multiply (1) by 2 and (2) by 3 2( 3x+2y=8). 6x+4y=16 (3).3(2x+5y=-...

Water molecules move down their concentration gradient, across the partially permeable cell membrane, from a high concentration to a low concentration. Osmosis continues until the concentration of water m...

Because metals contain a ‘sea’ of delocalised electrons that are free to move around the metallic lattice, carrying charge.

Sovereignty is a concept that can be traced to the 1648 Peace of Westphalia, which put an end to the 100 year-religious European wars. The concept was designed to allow each nation in Europe to declare th...

The general format for an equation of this type is ax²+bx+c Firstly you should factor the equation. Since in the example given a=1 you know that there will be a single x term in each factor. So...