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Damm [24]
3 years ago
7

Solve 7x-4 = 5x+15 for x

Mathematics
1 answer:
tatiyna3 years ago
6 0

\bf{Hey\ there!}

\bf{7x-4 = 5x+15}

\bf{\underline{Subtract}\ 5x\ from\ \ on \ both\ of\ your\ sides!\downarrow}

\bf{7x-4-5x=5x+15-5x}

\bf{2x-4=15}

\bf{\underline{Add}\ by\ 4\ on\ each\ of\ your\ sides!\downarrow}

\bf{2x-4+4=15+4}

\bf{Cancel:-4+4\ because\ it\ equals\ 0}

\bf{Keep:15+4\ because\ it\ helps\  us\ solve\ for\ your\ answer}

\bf{15+4=19}

\bf{2x=19}

\bf{\underline{Divide}\ by\ 2\ on\ your\ sides!\downarrow}

\bf\frac{2x}{2}=\frac{19}{2}}

\bf{Cancel:\frac{2x}{2}\ because\ that\ gives\ you\ 1}

\bf{Keep:\frac{19}{2}\ because\ it\ gives\ you\ the\ the\ value\ of\ x}

\boxed{\boxed{\bf{Answer:x=\frac{19}{2}}}}\checkmark

\bf{Good\ luck\ on\ your\ assignment\ and\ enjoy\ your\ day!}

\frak{LoveYourselfFirst:)}

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Answer:

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Step-by-step explanation:

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3 years ago
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Step-by-step explanation:

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djverab [1.8K]

Answer:

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Step-by-step explanation:

The point estimate is given by the following formula:

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Now, the margin of error is given by the following equation:

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6 0
3 years ago
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