Mister Exam
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How to use it?
- Equation:
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Equation sinx=1
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Equation x^2+5*x-14=0
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Equation -2*x-7=-4*x
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Equation x+4|x|=3
- Express {x} in terms of y where:
- 7*x+6*y=-1
- -12*x+13*y=-15
- -18*x+15*y=-14
- 20*x+16*y=3
- Derivative of:
- 5+2x
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Identical expressions
- five +2x=-2x- seven
- 5 plus 2x equally minus 2x minus 7
- five plus 2x equally minus 2x minus seven
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Similar expressions
- -2*x-7=-4*x
- 5+2x=-2x+7
- (x-7)^4-2(x-7)^2-15=0
- x/2+5+2*x=100
- 5+2*x=0
- 5+2x=+2x-7
- 5-2x=-2x-7
- (-2*x+1)*(-2*x-7)=0
5+2x=-2x-7 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:
$$2 x = - 2 x - 12$$
Move the summands with the unknown x
from the right part to the left part:
$$4 x = -12$$
Divide both parts of the equation by 4
We get the answer: x = -3
5+2*x = -2*x-7
Move free summands (without x)
from left part to right part, we given:
$$2 x = - 2 x - 12$$
Move the summands with the unknown x
from the right part to the left part:
$$4 x = -12$$
Divide both parts of the equation by 4
x = -12 / (4)
We get the answer: x = -3