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Can someone explain how to get x by itself in the equation x over a plus x over b equals 1 I know there answer is ab over a plus b but i don't know why?
x/a + x/b = 1
Taking x as a common factor: x*(1/a + 1/b) = 1
Adding the fractional parts x*(b/ab + a/ab) = 1
or x*[(b + a)/ab] = 1
Multiply both sides by (a+b)/ab
x = (a+b)/ab
Another Approuch:-
x/a+x/b = 1
Multiply all terms by ab to eliminate the fractions:
bx+ax = ab
Factorise:
x(a+b) = ab
Divide both sides by (a+b):
x = ab/(a+b)
What else can I help you with?
When the equation is solved for x what will be by itself on one side of the equation?
Because it is "solved for x", x will be by itself on one side of the equation. On the other side will be what x equals.
What - what equals 477?
To find the value of "what" in the equation "what - what equals 477," we can set it up as "x - x = 477." However, since any number minus itself equals zero, there is no value of "what" that satisfies this equation. Therefore, the equation is not solvable in standard arithmetic.
What does it mean when the result of solving a linear equation is x equals 0?
Solving a one variable linear equation involves getting the variable on one side of the equals sign by itself. To do this one uses the properties of numbers.
What is the gradient of a line with the equation y equals 4 equals 3?
" y equals 4 equals 3 " is a mathematically meaningless statement, that doesn't lend itself to any standard operations or productive discussion.
What times itself equals 30?
To find a number that times itself equals 30, you need to solve the equation ( x^2 = 30 ). The solution is ( x = \sqrt{30} ) or ( x \approx 5.48 ). Thus, the value that times itself to equal 30 is approximately 5.48.
When the equation is solved for x what will be by itself on one side of the equation?
Because it is "solved for x", x will be by itself on one side of the equation. On the other side will be what x equals.
What is A equation for -2x plus 8 equals 7x-10?
-2x + 8 = 7x - 10 is technically an equation, in and of itself.
What - what equals 477?
To find the value of "what" in the equation "what - what equals 477," we can set it up as "x - x = 477." However, since any number minus itself equals zero, there is no value of "what" that satisfies this equation. Therefore, the equation is not solvable in standard arithmetic.
What is the square root of n in the equation x sqrtn?
The square root of n in the equation x n is the value that, when multiplied by itself, equals n.
Is 66.781 divded by 7 equals 22.903 a reasponsable answer explain why or why not?
no itself is bigger than 66.781
What does it mean when the result of solving a linear equation is x equals 0?
Solving a one variable linear equation involves getting the variable on one side of the equals sign by itself. To do this one uses the properties of numbers.
What is the gradient of a line with the equation y equals 4 equals 3?
" y equals 4 equals 3 " is a mathematically meaningless statement, that doesn't lend itself to any standard operations or productive discussion.
What times itself equals 30?
To find a number that times itself equals 30, you need to solve the equation ( x^2 = 30 ). The solution is ( x = \sqrt{30} ) or ( x \approx 5.48 ). Thus, the value that times itself to equal 30 is approximately 5.48.
What is the solution to this equation -20x equals -300?
280
What is the answer to the equation x equals 6?
There is no "answer", X=6 is complete in itself. There is nothing to solve. What is the value of X? Well, it's equal to 6.
How do you solve 5x equals 18 plus 5x?
That equation has no solution. There is no possible number that's equal to 18 more than itself.
What is the answer for this 9 equals x2 plus 57?
This equation is unsolvable as x2 cannot be a negative number as would be suggested by this equation. Any number, even a negative, multiplied by itself will always give a positive number but this equation leaves you with x2 = -48
