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yan [13]
4 years ago
12

What is the value of n in the equation (n – 4) – 3 = 3 – (2n + 3)?

Mathematics
1 answer:
SVETLANKA909090 [29]4 years ago
4 0
N= -7; open the first bracket, then add the two negatives.Then open the second bracket,  and cancel opposite sign 3's and then solve.
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Please help on both! And please put answer and not a website!
marissa [1.9K]

Answer:

1: 55     2: 40

Step-by-step explanation:

For the first problem, by the triangle angle theorm, the three angles in a triangle add up to 180, so

90+35+x=180

125 + x = 180

x = 55

Now, the angle you just found (x = 55) and the exterior angle are supplementary so they also add up to 180

55 + y = 180

y = 125

For the second problem, the two angles in a triangle non-adjacent to the exterior angle are equal to the exterior angle, so

40 + 2x = 3x

x = 40

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3 years ago
How many solutions does the given system of equations have?
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8 0
3 years ago
19x+15y=-6 changed into slope intercept form.
attashe74 [19]

Answer:

y = - \frac{19}{15} x - \frac{2}{5}

Step-by-step explanation:

The equation of a line in slope- intercept form is

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Given

19x + 15y = - 6 ( subtract 19x from both sides )

15y = - 19x - 6 ( divide all terms by 15 )

y = - \frac{19}{15} x - \frac{6}{15}, that is

y = - \frac{19}{15} x - \frac{2}{5} ← in slope- intercept form

7 0
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305 plus 90= 395. Found by doing 395-90
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\frac{users worldwide}{US users}
\frac{5700000000}{300000000}
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3 years ago
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