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I. 3x + 5y = 19 II. 8x - 2y = -18 . We see that we can simplify the second equation, and we do so: II. x - y = -9. Now, we check to see which variable i...

The phagocyte recognises antigens on the surface of the bacteria as foreign, causing it to be attracted to the bacteria. The phagocyte then engulfs the bacteria, forming a vesicle around it. Lysozomes fus...

Recall that all straight lines have the general equation y = mx + c, where m is the gradient of the line and c is the y intercept. First work out the gradient, m, of the line: Gradient = rise/run = (chang...

The main reason why economic migrants move away from their country of origin is down to opportunity's and employment. Often those who move are unemployed and struggling to find work in their own country d...

The subjunctive is a verbal mode, a way that we can change a verb so that it expresses a certain meaning. Normally we use the indicative mode to indicate something certain or regular, e.g. "Je vais à...