Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 81*x^3+18*x^2+x=0
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Equation 6=8-5(7x-1)
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Equation 3x=28-x
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Equation 3x=2
- Express {x} in terms of y where:
- -13*x-7*y=16
- -16*x+10*y=-11
- -2*x-15*y=-1
- -14*x+5*y=-1
- Integral of d{x}:
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3x
- Derivative of:
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3x
- 28-x
- Canonical form:
- 3x
- Graphing y =:
- 28-x
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Identical expressions
- 3x= twenty-eight -x
- 3x equally 28 minus x
- 3x equally twenty minus eight minus x
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Similar expressions
- (x+3)^2*(8-x)^3/(x-4)^4=0
- 3x=28+x
3x=28-x equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move the summands with the unknown x
from the right part to the left part:
$$4 x = 28$$
Divide both parts of the equation by 4
We get the answer: x = 7
3*x = 28-x
Move the summands with the unknown x
from the right part to the left part:
$$4 x = 28$$
Divide both parts of the equation by 4
x = 28 / (4)
We get the answer: x = 7
The graph