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Karolina [17]
3 years ago
8

How do i solve 12+4x=30+12

Mathematics
1 answer:
Elza [17]3 years ago
4 0

Answer:

x = 15/2

Step-by-step explanation:

Solve for x:

4 x + 12 = 42

Subtract 12 from both sides:

4 x + (12 - 12) = 42 - 12

12 - 12 = 0:

4 x = 42 - 12

42 - 12 = 30:

4 x = 30

Divide both sides of 4 x = 30 by 4:

(4 x)/4 = 30/4

4/4 = 1:

x = 30/4

The gcd of 30 and 4 is 2, so 30/4 = (2×15)/(2×2) = 2/2×15/2 = 15/2:

Answer: x = 15/2

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X=y-33/4.

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In a jar of coins, 18 out of the 40 coins are dimes. Express the fraction of the coins
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Step-by-step explanation:

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3 0
3 years ago
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Hey! pls help me with this question on angles. would really be appreciated. have a nice day.
Neko [114]

Using supplementary angles, it is found that the measures of the angles are given as follows:

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<h3>What are supplementary angles?</h3>

Supplementary angles are two angles whose sum is of 180º.

An interior angle is supplementary with it's exterior angle, hence:

m<a + 150º = 180º -> m<a = 30º.

The sum of the three interior angles of a triangle is of 180º, hence:

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More can be learned about supplementary angles at brainly.com/question/12919120

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