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2 years ago

X/4 - x/6 = 1 please help

1 answer:

4 0

To solve this multiply through by the LCM of 4 and 6, which is 12:-

12 * x/4 - 12 * x/6 = 1*12

3x - 2x = 12

x = 12 answer

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3 years ago

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Simplify each expression using the laws of exponents. No negative exponents should be in your final answer. (On the image attach

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Answer:

Answer is given below with explanations.

Step-by-step explanation:

$by \: simplifying \: the \: given \: expression \: using \: \\ law \: of \: exponents \: we \: get \\ \frac{15 {x}^{15} {y}^{ - 3} {z}^{4} }{18 {x}^{18} { {y}^{4} {z}^{ - 4} }^{} } \\ = \frac{5 \: {x}^{ - 3} {y}^{ - 7} {z}^{8} }{6} \\ we \: may \: also \: write \: as \\ = \frac{5 {z}^{8} }{6 {x}^{3} {y}^{7} }$

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5 0

2 years ago

Read 2 more answers

Substitute x = 5 into the expression (-2)x + 6. Do you get -4? Substitute x = -1 into the expression (-2)x + 6. Do you get - 4 W

8090 [49]

Answer:The first method, by substituting 5 into the expression (-2)x + 6 gives the coreect answer of -4

Step-by-step explanation:

Ist method

Substituting x = 5 into the expression (-2)x + 6, we have

(-2) 5 + 6,

=-10 + 6

=-4

2nd method

Substitute x = -1 into the expression (-2)x + 6,we have

(-2)(-1) + 6

2 +6=10

The first method, by substituting 5 into the expression (-2)x + 6 gives the coreect answer of -4

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2 years ago

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Step-by-step explanation:

(x+3)(x+3)

distribute the x to both three and x.

x * x + 3x * 3x

add like terms.

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