3 years ago

Solve for y -3(y+5)=15

Mathematics

2 answers:

Dominik [7]3 years ago

8 0

Answer:

y=-10

Step-by-step explanation:

y+5=-5

y=-10

Molodets [167]3 years ago

7 0

Answer:

y = -15

Step-by-step explanation:

y -3(y+5)=15 (distribute -3 into the parentheses)

y + y(-3)+5(-3)=15

y-3y-15=15

-2y -15 = 15 (add 15 to both sides)

-2y = 15 + 15

-2y = 30 (divide both sides by -2)

y = 30 / -2 = -15

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Answer:

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Step-by-step explanation:

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2 years ago

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2 years ago

Which equation represents a line that passes through (–2, 4) and has a slope of ? y – 4 = 2/5(x + 2) y + 4 = 2/5(x – 2) y + 2 =

valentinak56 [21]

$\bf \begin{array}{lllll}
&x_1&y_1\\
% (a,b)
&({{ -2}}\quad ,&{{ 4}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{2}{5}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y-{{ y_1}}={{ m}}(x-{{ x_1}})}\implies y-4=\cfrac{2}{5}[x-(-2)]
\\\\\\
y-4=\cfrac{2}{5}(x+2)$