Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 3*x^2-8*x-3=0
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Equation cos(3*x)=0
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Equation 3*x=5
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Equation x^2-11*x+10=0
- Express {x} in terms of y where:
- 11*x-6*y=-1
- -17*x-11*y=16
- -11*x+13*y=10
- -20*x+6*y=-12
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Identical expressions
- eight = three (x- four)-x
- 8 equally 3(x minus 4) minus x
- eight equally three (x minus four) minus x
- 8=3x-4-x
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Similar expressions
- 8=3(x-4)+x
- 8=3(x+4)-x
- x^2-3*x-4-x^(1/2)-3^(1/2)=0
- (3*x-4-x)/x=13
- (x-3)(x-4)-x(x+2)+1=x+7
- (x+3)(x-4)-(x+3)(5x+14)=0
8=3(x-4)-x equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the right part
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$0 = 2 x - 20$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-2\right) x = -20$$
Divide both parts of the equation by -2
We get the answer: x = 10
8 = 3*(x-4)-x
Expand brackets in the right part
8 = 3*x-3*4-x
Looking for similar summands in the right part:
8 = -12 + 2*x
Move free summands (without x)
from left part to right part, we given:
$$0 = 2 x - 20$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-2\right) x = -20$$
Divide both parts of the equation by -2
x = -20 / (-2)
We get the answer: x = 10
The graph