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vova2212 [387]
2 years ago
7

3x +12 =90 what is x

Mathematics
2 answers:
babunello [35]2 years ago
5 0

Answer:

x = 26

Step-by-step explanation:

Before we begin, we must first remember that to solve for x, we have to get the variable (x) by itself.

To start, you would first subtract 12 from the left and right side of the equation.

3x + 12 - (12) = 90 - (12)

The 12 would cancel out on the left side (12 - 12 = 0) and you would now be left with 3x = 78.

Next, you would divide the left and ride side by 3.

3x ÷ 3 = 78 ÷ 3

This gives you the answer of 1x = 26 or x = 26

castortr0y [4]2 years ago
3 0

Answer:

x=26

Step-by-step explanation:

3x +12 =90

subtract 12 from each side

3x=78

divide 3 from each side

x=26

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7 0
3 years ago
Read 2 more answers
Answer these questions please please
Natalka [10]

Answer:

Step-by-step

i) a² - 2ab + b² = (a + b)²

a² = p² ;     a  = p

b² = 16 = 4²  ;        b = 4

2ab = 2*p*4 = 8p

p² - 8p + 16 = (p - 4)²

ii) a² + 2ab + b² = (a +b)²

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2ab = 2 * 11x * 2y = 44xy

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4 0
2 years ago
What is the length of BC⎯⎯⎯⎯⎯ ?<br><br><br> Enter your answer in the box.
Rudiy27

Answer:

  \overline{\text{BC}}=\boxed{22}

Step-by-step explanation:

The angle marks mean those angles have the same measure. That means the sides opposite them have the same measure, so ...

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The length of BC is x, so is 22.

BC = 22

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