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3 years ago

10

How do you solve -178=-5x+4(-4x-13)

1 answer:

Effectus [21]3 years ago

5 0

Answer:

x = 6

Step-by-step explanation:

<em><u>Pull out like factors: </u></em>

-4x - 13 = -1 • (4x + 13)

<em><u>Equation at the end of step 2: </u></em>

-178 - (-5x + -4 • [4x + 13] ) = 0

<em><u>Pull out like factors: </u></em>

21x - 126 = 21 • (x - 6)

<em><u>Equation at the end of step 4: </u></em>

21 • (x - 6) = 0

<em><u>Solve:</u></em>

x-6 = 0

<em><u>Add 6 to both sides of the equation:</u></em>

x = 6

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Step-by-step explanation:

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$\large\red{\sf{y=3x-1}}$

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$\begin{gathered}\\ \sf\longmapsto 9=3(1)-1\end{gathered}$

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$\begin{gathered}\\ \sf\longmapsto 9=5+4\end{gathered}$

$\begin{gathered}\\ \sf\longmapsto 9=9\end{gathered}$

$\large\blue{\sf{y=-2x-8}}$

$\begin{gathered}\\ \sf\longmapsto 9=-2(1)-8\end{gathered}$

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