3 years ago

Solve the equation: 3x - 2/4 = 2x – 8 Explain your reasoning / show work:

Mathematics

2 answers:

dezoksy [38]3 years ago

6 0

X=-15/2 is the answer

agasfer [191]3 years ago

4 0

X= -15/2
Reduce the fraction
Move terms
Collect like terms and calculate

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In general the binomial expansion is

$(a+b)^n = {n \choose 0} a^0 b^n + {n \choose 1} a^1 b^{n-1} + {n \choose 2} a^2 b^{n-2} + ... + {n \choose n} a^n b^0$

So in our case, because we want ascending powers of x we'll write,

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We need to calculate the binomial coefficients:

${11 \choose 0} = 1$

${11 \choose 1} = 11$

${11 \choose 2} = \dfrac{11 \times 10}{2} = 55$

${11 \choose 3} = \dfrac{11 \times 10 \times 9}{3 \times 2} = 165$

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4 years ago

Solve the equation: 3x - 2/4 = 2x – 8 Explain your reasoning / show work:​

Solve the equation: 3x - 2/4 = 2x – 8 Explain your reasoning / show work: