Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 49*x^3+14*x^2+x=0
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Equation 9^x-8*3^x-9=0
- Equation x+y=4
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Equation x^2=-3
- Express {x} in terms of y where:
- 18*x+17*y=-14
- 16*x-17*y=-15
- -4*x-4*y=19
- 15*x+1*y=19
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Identical expressions
- fifteen - three (x- six)= nine -6x
- 15 minus 3(x minus 6) equally 9 minus 6x
- fifteen minus three (x minus six) equally nine minus 6x
- 15-3x-6=9-6x
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Similar expressions
- 9-6*x^2+x^4+4*x^2+4*x+1=0
- 15-3(x+6)=9-6x
- 15-3(x-6)=9+6x
- 9-6*x=5
- 15+3(x-6)=9-6x
- (x-4)/(x-3)=2/(9-6*x+x^2)
- ((6*x*(81-x^4)-12*x^5)*(x^2-9)-6*x^3(81-x^4))/(x^2-9)^2-30*x^2+72*x=0
15-3(x-6)=9-6x equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 3 x = - 6 x - 24$$
Move the summands with the unknown x
from the right part to the left part:
$$3 x = -24$$
Divide both parts of the equation by 3
We get the answer: x = -8
15-3*(x-6) = 9-6*x
Expand brackets in the left part
15-3*x+3*6 = 9-6*x
Looking for similar summands in the left part:
33 - 3*x = 9-6*x
Move free summands (without x)
from left part to right part, we given:
$$- 3 x = - 6 x - 24$$
Move the summands with the unknown x
from the right part to the left part:
$$3 x = -24$$
Divide both parts of the equation by 3
x = -24 / (3)
We get the answer: x = -8