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love history [14]
1 year ago
9

How many solutions does this equation have? 4(-3b - 14) = -12b

Mathematics
1 answer:
Serga [27]1 year ago
3 0

Answer:

no solutions

Step-by-step explanation:

distribute the 4 to get:

-12b - 56 = -12b

add 12b to each side to get:

-56 = 0

since -56 does not equal 0 there are no solutions

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Can somebody help me, please?
Sveta_85 [38]

Answer:

a.x=10 \textdegree

b.

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Step-by-step explanation:

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We can therefore equate our angles to 180° and solve for x;

180=\perp\angle+(2x+19)+(3x+21)\\\\180=90+(2x+19)+(3x+21)\\\\90=5x+40\\\\5x=50\\\\x=10\textdegree

Hence, the angle measure is x=10°

b. Having calculated the value of x from a above as x=10°, we can substitute to find the measures of the two acute angles:

m\angle L=(2x+19)\textdegree\\\\=(2\times 10+19)\textdegree\\\\=39\textdegree\\\\m\angle M=(3x+21)\textdegree\\\\=(3\times 10+21)\textdegree\\\\=51\textdegree

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8 0
3 years ago
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