21x*2+100=-5

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Solution for 21x*2+100=-5 equation: 



21x*2+100=-5

We move all terms to the left:

21x*2+100-(-5)=0

We add all the numbers together, and all the variables

21x*2+105=0

Wy multiply elements

42x+105=0

We move all terms containing x to the left, all other terms to the right

42x=-105

x=-105/42

x=-2+1/2

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