Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+6x-7=0
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Equation x*x-x+7=0
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Equation 5*sqrt(x-3)=-2
- Equation x+y=8
- Express {x} in terms of y where:
- 1*x+18*y=-5
- 5*x+20*y=-4
- -11*x+9*y=8
- -9*x+1*y=20
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Identical expressions
- seven - two (x+ three)= nine -6x
- 7 minus 2(x plus 3) equally 9 minus 6x
- seven minus two (x plus three) equally nine minus 6x
- 7-2x+3=9-6x
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Similar expressions
- -2/7(-2x+3/4)=-1/7x-6/7
- 7-2(x+3)=9+6x
- (x-4)/(x-3)=2/(9-6*x+x^2)
- 7-2(x-3)=9-6x
- 9-6*x=5
- 7+2(x+3)=9-6x
- 5*x+0,7-2*x+3,8=0
- ((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
7-2(x+3)=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:
$$- 2 x = 8 - 6 x$$
Move the summands with the unknown x
from the right part to the left part:
$$4 x = 8$$
Divide both parts of the equation by 4
We get the answer: x = 2
7-2*(x+3) = 9-6*x
Expand brackets in the left part
7-2*x-2*3 = 9-6*x
Looking for similar summands in the left part:
1 - 2*x = 9-6*x
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 8 - 6 x$$
Move the summands with the unknown x
from the right part to the left part:
$$4 x = 8$$
Divide both parts of the equation by 4
x = 8 / (4)
We get the answer: x = 2