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3 years ago

Write a two-step equation that involves multiplication and subtraction includes a negative coefficient and has a solution of X=7

1 answer:

5 0

(-10 x -2) -13=x The biggest part on here is that a negative times a negative is always a positive so you just have to use big enough numbers to get over 7 and then subtract the rest to get to 7 which in this case was 13)

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Solve the equation. x2 = 160

zhannawk [14.2K]

80 because 160 divided by 2 is 80 so 2 x 80

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3 years ago

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TanA+tanB+tanAtanB=1 If A+B=45 degree

djyliett [7]

Answer:

See below

Step-by-step explanation:

$\tan A+\tan B + \tan A.\tan B = 1\\\\ \implies \: \tan A + \tan B = 1 - \tan A.\tan B \\ \\ \implies \: \frac{\tan A + \tan B}{ 1 - \tan A.\tan B } = 1\\ \\ \implies \: \tan (A + B) = 1 \\ \\ \implies \: \tan (A + B) =\tan 45 \degree \\ \\ \implies \: A + B = 45 \degree \\ \\ thus \: proved$

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2 years ago

Just the answer please

nordsb [41]

Answer:b is the right choice hopefully dont be mad if it is wrong

Step-by-step explanation:

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2 years ago

Solve the inequality<br>x - 3 < 3x - 7.

emmasim [6.3K]

Step-by-step explanation:

▪ x - 3 < 3x - 7

▪ x + 4 < 3x

▪ 4 < 2x

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3 years ago

I will mark best answer brainliest

Hunter-Best [27]

Answer: -1

Step-by-step explanation:

-8 (-8x - 6) = -6x - 22

distribute

64x + 48 = -6x -22

get rid of the smallest x by adding 6x to both side

70x + 48 = -22

minus 48 to both sides

70x = -70

divide both side by 70

x = -1

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2 years ago

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