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From the question we have y = -x - 2 so we can sub in -x-2 everywhere there is a y in the first equation.

The equation is then 2x+4(-x-2) = -12 expanding the brackets we get -2x-8=-12 which you can...

Whilst at first it may seem that desire can only be controlled by primitive biological instincts, we shall discover that it is possible for desire to be partly controlled by reason too. This will be shown...

cos(theta)-(4/3)cos³(theta)

The Truman Doctrine was an American initiative introduced in 1947, which marked a change of international policy from isolationism to containment. Introduced by President Truman in a speech to Congress, t...

Diffusion is the spreading out of particles of any substance in solution or of gas resulting in a net movement of an area of high concentration to an area of low concentration. Diffusion is key to the sur...