What is the first step to solve this equation: 12-4x=54

Mathematics

2 answers:

ValentinkaMS [17]3 years ago

4 0

Answer:

B. subtract 12 from both sides

Step-by-step explanation:

12-4x=54

-12 -12

-4x=42

arsen [322]3 years ago

4 0

Answer:

B. Subtract 12 from both sides

Step-by-step explanation:

You must be confused on why I say this. But hold tight, I have an explanation.

Because 12 is on the front side of the minus sign, it is actually positive. That means you must subtract it from both sides.

But what about 4x? Well, it is actually negative! Because the 12 is reduced to zero, the equation is technically 0 - 4x = 42. However, we just remove the 0 to make -4x = 42.

By the way, the fully solved equation is: x = -10.5 or x = -10 1/2

Hope this helps!

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AysviL [449]

Answer:

43.4

Step-by-step explanation:

You will need to use the phythagoream therom, which is a² + b² = c². Plug the values in for the variables to get 7² + b² = 44², (c would equal the hypothenuse because the hypothenuse is the longest side of the triangle.) Square the values to get 49 + b² = 1936. Subtract 49 from both sides to get b² = 1887, then take the square root of both sides to get b = 43.4 (rounded to the nearest tenth.)

I am really sorry if I'm wrong, but have a good day/night! :)

6 0

3 years ago

Read 2 more answers

20 points!!!

OverLord2011 [107]

Answer: y+3 = 4( x + 1)

Step-by-step explanation:

The equation in point slope form is given as :

y - $y_{1}$ = m ( x - $x_{1}$ ) , where m is the slope