Mister Exam
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How to use it?
- Equation:
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Equation 10x-11=4x-7
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Equation 5x^2-20=0
- Equation 18d+3d+5d–21d=15
- Equation m-b/b2+m2(b+m/b-2b/b-m)
- Express {x} in terms of y where:
- -1*x-19*y=-10
- 4*x-16*y=6
- 5*x+5*y=20
- sqrt(x^2+y^2+4x-6y-12)+(x^2+10x-27)=8-|y-9|+|y-3|
- Sum of series:
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15
- Integral of d{x}:
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15
- Derivative of:
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15
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Identical expressions
- 18d+3d+5d–21d= fifteen
- 18d plus 3d plus 5d–21d equally 15
- 18d plus 3d plus 5d–21d equally fifteen
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Similar expressions
- 18d-3d+5d–21d=15
- 18d+3d-5d–21d=15
18d+3d+5d–21d=15 equation
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The solution
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18*d + 3*d + 5*d - 21*d = 15
$$- 21 d + \left(5 d + \left(3 d + 18 d\right)\right) = 15$$
Detail solution
Given the linear equation:
Looking for similar summands in the left part:
Divide both parts of the equation by 5
We get the answer: d = 3
18*d+3*d+5*d-21*d = 15
Looking for similar summands in the left part:
5*d = 15
Divide both parts of the equation by 5
d = 15 / (5)
We get the answer: d = 3