Mister Exam
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How to use it?
- Equation:
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Equation x^2+7=0
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Equation x+2=0
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Equation 2x=0
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Equation -15x=45
- Express {x} in terms of y where:
- -15*x-13*y=-20
- -15*x-19*y=2
- 4*x+4*y=13
- -4*x+14*y=-2
- Derivative of:
- -7x+4
- Graphing y =:
- -7x+4
- Integral of d{x}:
- -7x+4
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Identical expressions
- -7x+ four =2x- fourteen
- minus 7x plus 4 equally 2x minus 14
- minus 7x plus four equally 2x minus fourteen
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Similar expressions
- (2x-1)*4-x*2=0
- 2*x-14+2*x=404
- (2x-1)4-10(2x-1)2+9=0
- 7*x*x-2*x-14=0
- -15-3*x=-7*x+45
- -7x-4=2x-14
- -7x+4=2x+14
- (x-7)*(x+4,5)*(x-4/9)=0
- (3x-7)*(x+4)+(x-1)*(x+4)=0
- 7x+4=2x-14
-7x+4=2x-14 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$- 7 x = 2 x - 18$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-9\right) x = -18$$
Divide both parts of the equation by -9
We get the answer: x = 2
-7*x+4 = 2*x-14
Move free summands (without x)
from left part to right part, we given:
$$- 7 x = 2 x - 18$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-9\right) x = -18$$
Divide both parts of the equation by -9
x = -18 / (-9)
We get the answer: x = 2
The graph