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first you sub in the values you know so3(2) + 4(-1) + 7z =12then you simply the equation6-4+7z=122+7z=12then you put all the letter values on one side and all the numbers on the other12-2= 7zthen simplify...

Start with an introduction, here you should tell your reader your standpoint and then the rest of the essay is used to show why your standpoint may be correct or incorrect. For example 'Do all Christians...

first you let the given number equal xeg x = 0.8989898989. equation 1then look at the decimal and figure out which number is repeating. here it is 89 a two digit numberso we multiply x and the decimal by ...

As they both equal y these 2 terms can be equated to each other.x+1 = x^2+1We can re-arrange this new equation, and solve for x.This equals: 0 = x^2 - xsolve for x:0 = x(x-1)so x = 1, 0.

Crystalline solids at rtphigh mp and bpoften soluble in waterconduct electricity when dissolved in water or molten