Well, darling, the answer to 8x plus 4x is simply 12x. It's as easy as stealing candy from a baby. Just add those coefficients together like you're mixing a cocktail, and you've got your answer. Math doesn't have to be a headache, honey.
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If the question was: "What is the answer to 8 cows plus 4 cows ?",
you'd have no trouble with it.
Why are 'x's so much more mysterious and harder to handle than cows are ??
8x + 9.16 = 4x + 16 8x - 4x = 16 - 9.16 4x = 6.84 x= 1.71
8x-2x+4x=10x
8x + 12 = 4x - 4 8x - 4x = -4 - 12 4x = -16 x = -4
8x+5=4x+13 4x=8 x=2 Therefore, your answer is 2.
8x + 15