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4y+2=6y-2, add 2 to both sides. 4y+4=6y, subtract 4y from both sides. 4=2y, divide both sides by 2 y=2
Rearrange the equation so x^2 - 7x -18 = 0, then simplify into (x-9)(x+2)=0 -> x=9 or x=-2
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The question is asking you to find the value of x, x represents a number. Therefore, 7x means 7 times a number- this the number we are trying to find out. The first step is to get all the numbers containi...
To divide fractions, we need to flip/invert/turn upside down the second fraction (the one you are dividing by). Then multiply the first fraction by the flipped fraction as normal. So, flipping the second ...
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