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11Alexandr11 [23.1K]
3 years ago
7

Solve the equation 50=4(x-7)-6(3x-6)

Mathematics
2 answers:
andreev551 [17]3 years ago
6 0

50 = 4(x - 7) - 6(3x - 6)

Apply the Distributive Property to get rid of the parentheses first. The Distributive Property: a(b + c) = ab + ac.

50 = 4(x - 7) - 6(3x - 6)

50 = 4x - 28 - 18x + 36

Collect like terms (constants and x-terms).

50 = 4x - 28 - 18x + 36

50 = -14x + 8

Subtract 8 from both sides to isolate the variable term.

42 = -14x

Divide both sides by -14 to isolate x.

42/-14 = -14x/-14

-3 = x

Answer:

x = -3

rusak2 [61]3 years ago
3 0

we are given

50=4(x-7)-6(3x-6)

Firstly , we can distribute

50=4x-28-18x+36

now, we can combine like terms

50=-14x+8

-14x=42

now, we can solve for x

and we get

x=-3...........Answer

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Step-by-step explanation:

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Answer:

How far does Clare travel in one hour?

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You decide to enter in a rowing competition. To train, you go to the boat house and begin rolling down stream. You row for the s
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Answer:

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Step-by-step explanation:

Let speed of boat in still water be = x\ ms^{-1}

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Speed of boat down stream = \textrm{Speed of boat in still water +Speed of current}= (x+10)\ ms^{-1}

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\textrm{Time spent rowing down stream =Time spent rowing up stream}

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Cross multiplying

2400(x-10)=400(x+10)

Dividing both sides by 400

\frac{2400(x-10)}{400}=\frac{400(x+10)}{400}

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Dividing both sides by 5.

\frac{5x}{5}=\frac{70}{5}

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Speed of boat in still water =14\ ms^-1

Time spent rowing down stream =\frac{2400}{14+10}=\frac{2400}{24}=100\ s

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3 years ago
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