Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^3=x^2+2x
- Equation x^3+6x^2-x-6=0
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Equation (x-1)*(x^2+8*x+16)=6*(x+4)
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Equation 4x^3-4x=0
- Express {x} in terms of y where:
- -13*x-15*y=-9
- -4*x+16*y=-14
- 6*x+7*y=-1
- 20*x-7*y=-5
- Sum of series:
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0,075
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Identical expressions
- x/(x+ seventy-four)= zero , seventy-five
- x divide by (x plus 74) equally 0,075
- x divide by (x plus seventy minus four) equally zero , seventy minus five
- x/x+74=0,075
- x/(x+74)=O,075
- x divide by (x+74)=0,075
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Similar expressions
- 1/750=(749-x)/(x+749)
- x/(x-74)=0,075
x/(x+74)=0,075 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation:
$$\frac{x}{x + 74} = \frac{3}{40}$$
Multiply the equation sides by the denominator 74 + x
we get:
$$x = \frac{3 x}{40} + \frac{111}{20}$$
Move the summands with the unknown x
from the right part to the left part:
$$\frac{37 x}{40} = \frac{111}{20}$$
Divide both parts of the equation by 37/40
We get the answer: x = 6
$$\frac{x}{x + 74} = \frac{3}{40}$$
Multiply the equation sides by the denominator 74 + x
we get:
$$x = \frac{3 x}{40} + \frac{111}{20}$$
Move the summands with the unknown x
from the right part to the left part:
$$\frac{37 x}{40} = \frac{111}{20}$$
Divide both parts of the equation by 37/40
x = 111/20 / (37/40)
We get the answer: x = 6