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How do you solve -x plus 9-2x equals -21?
-x + 9 - 2x = -21 combine like terms -x and -2x isolate -3x by subtracting 9 from both sides divide both sides by -3 -3x + 9 = -21 - 9 - 9 -3x = -30 x = 10
How do you divide fractions to twelfths?
1/7 x 12/9 = 12/63 = 4/21
What Is 9 plus x equals 21 for x equals 11?
x ≠11 9 + x = 21 9 + x - 9 = 21 - 9 x = 12
How do you slove x for 4x plus 9 plus x equals 30?
Not sure about slove, but to solve it: first combine like terms: 5x + 9 = 30 Then subtract 9 from both sides: 5x = 21 Finally, divide both sides by 5: x = 21/5 = 4.2
5x - 12 equals -2x plus 9?
x=3first, take the X's and move them to the side where the five is, giving you 7x, and move the -12 to the 9, so 7x=21 then divide by seven, and x=3
How do you solve -x plus 9-2x equals -21?
-x + 9 - 2x = -21 combine like terms -x and -2x isolate -3x by subtracting 9 from both sides divide both sides by -3 -3x + 9 = -21 - 9 - 9 -3x = -30 x = 10
What is the answer to -12 equals x plus 9?
-12 = x+9 x+9 -9 = -12 -9 x = -21
What is x when 10x plus 9equals 8x plus 21?
X= 6 10x + 9 = 8x + 21. subtract 8x and 9 to both sides 2x = 12. divide by 2 to both sides x = 6
How do you divide fractions to twelfths?
1/7 x 12/9 = 12/63 = 4/21
What Is 9 plus x equals 21 for x equals 11?
x ≠11 9 + x = 21 9 + x - 9 = 21 - 9 x = 12
16 over 21 divided by 8 over 9?
To divide by a fraction, multiply by its reciprocal. In this instance, 16/21 / 8/9 is equal to 16/21 x 9/8 = 0.857142 recurring (that is, 0.857142857142...)
What is 3 over 4 divide by 2 3 over 9?
3/4 x 9/21 = 27/84 = 9/28
A strong line in the spectrum of atomic mercury has a wavelength of 254 nm When mercury emits a photon of light at this wavelength the frequency of this light is?
To find the frequency of light emitted by mercury at a wavelength of 254 nm, you can use the formula: frequency = speed of light / wavelength. The speed of light is about 3.00 x 10^8 m/s. Convert the wavelength to meters (254 nm = 254 x 10^-9 m) and plug in the values to calculate the frequency.
What gives you 254?
1 x 254, 2 x 127 = 254
How do you slove x for 4x plus 9 plus x equals 30?
Not sure about slove, but to solve it: first combine like terms: 5x + 9 = 30 Then subtract 9 from both sides: 5x = 21 Finally, divide both sides by 5: x = 21/5 = 4.2
What times what will give you 21?
1 x 21 3 x 7
What is 6x - 9 21?
6x - 9 = 21 6x = 21 + 9 6x = 28 x = 28/6 Reduce to: x = 14/3
