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5(2X) = 18
take natural log each side
ln[5(2X)] = ln(18)
now, as a logarithmic operation the exponent can come down in front of the log sign
2X ln(5) = ln(18)
divide thus
2X = ln(18)/ln(5) [ not ln(18/5)!!!! ]
2X = 1.795888947
divide by 2
X = 0.8979444735
-------------------------------check in original equation
5(2*0.8979444735) = 18
18 = 18
-------------checks
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What is -3x plus -18 equals 2x plus 7?
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
IS 2x plus 5 is an example of an equation?
No, this is an "expression". An equation would include an equal sign, for example:2x + 5 = 11No, this is an "expression". An equation would include an equal sign, for example:2x + 5 = 11No, this is an "expression". An equation would include an equal sign, for example:2x + 5 = 11No, this is an "expression". An equation would include an equal sign, for example:2x + 5 = 11
-3x plus 7 equals 2x-18?
-3x+7=2x-18 ---> 7+18=2x-3x ----> 25=5x ----> x=5
What is 2x plus 5 not equal to 5?
2x+5 is eual to 0 because if x is zero it will equal to zero so it can be both depands on the question
What is 15x-18 equals -2x-5?
Here is the answer with Steps: 15x - 18 = -2x - 5 15x = -2x + 13 17x = 13 x = 13/17 x ~ .764705882
If an isocceles has a base 3 longer than the leg how long is the base if the perimeter is 18 CM?
With an isosceles triangle both legs are equal. So lets call the legs 2x and the base x+3: 2x+x+3 = 18 2x+x = 18-3 3x = 15 x = 5 Therefore: 5+3 = 8 units which is the length of the base.
How do you solve 2X plus 5 squared equals 7?
2x + 52 = 7 2x + 25 = 7 2x = 7 - 25 2x = -18 x = -18/2 x = -9
Why does 2x-3 equals 2x-5 have no solution?
2x - 3 = 2x - 52x = 2x - 22x - 2x = -20 =/= -2Zero is not equal to -2 so the answer is no solution.
What does 4x plus 5 plus 2x equal?
6x + 5
What does x equal if y 2x 5?
y=2x-3 y=-x-3
What is 2x-13 equals 5 This is an equation please help?
If 2x - 13 = 5 then 2x = 5 + 13 (we have in effect added 13 to both sides of the equation in this step) 2x = 18 x = 9.
What is five more than twice a number is twenty seven?
This can be realized in numbers as:Five more than (5 +) twice a number (2x) is equal to 27 (=27).5 + 2x = 27Subtract 5 from both sides.2x + 5 (- 5) = 27 (- 5)2x = 22Divide by 2x = 11
