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To begin, the first rule to memorize is that both the PPS and the Imperfeito do Indicativo are used in order to narrate an action that happened in the past, that ...
You are trying to find out the value of 'x' and the value of 'y'.
This means that you need to be able to take away one equation from the other.
3x + 2y = 4 - we are going to times this equ...
A stone, of mass m, falls vertically downwards under gravity through still water. At time t, the stone has speed v and it experiences a resistance force of magnitude lmv, where l is a constant. QUESTION:...
5x+6y=3 2x-3y=12 6y=3-5x 2x=12+3y 3y=2x-12 Therefore, 6y=2(2x-12)=4x-24 4x-24=3-5x 9x=27 x=3
ADH is a hormone made in the hypothalamus and secreted from the pituitary gland. It circulates in the blood to the collecting ducts of the kidneys where it makes aquaporin channels through the collecting ...
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