Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 7*x=0
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Equation 3x-2=x+4
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Equation tan(x)=7
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Equation (x-3)(x^2-2x+1)=3(x-1)
- Express {x} in terms of y where:
- 18*x-10*y=-9
- 18*x-12*y=-9
- 12*x+11*y=20
- 19*x-12*y=-9
- Integral of d{x}:
- 2x+7
- Derivative of:
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2x+7
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Identical expressions
- two x+ seven =3x-2(3x- one)
- 2x plus 7 equally 3x minus 2(3x minus 1)
- two x plus seven equally 3x minus 2(3x minus one)
- 2x+7=3x-23x-1
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Similar expressions
- sqrt(2*x+7)/3=5
- 2x+7=3x-2(3x+1)
- 2x-7=3x-2(3x-1)
- x^2-12*x+7=0
- (3x-2)(3x-1)3x=504
- 2x+7=3x+2(3x-1)
- -(x+3)*(5*x-1)+(2*x+7)*(3*x-1)=(x+1)^2
2x+7=3x-2(3x-1) 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:
$$2 x = - 3 x - 5$$
Move the summands with the unknown x
from the right part to the left part:
$$5 x = -5$$
Divide both parts of the equation by 5
We get the answer: x = -1
2*x+7 = 3*x-2*(3*x-1)
Expand brackets in the right part
2*x+7 = 3*x-2*3*x+2*1
Looking for similar summands in the right part:
7 + 2*x = 2 - 3*x
Move free summands (without x)
from left part to right part, we given:
$$2 x = - 3 x - 5$$
Move the summands with the unknown x
from the right part to the left part:
$$5 x = -5$$
Divide both parts of the equation by 5
x = -5 / (5)
We get the answer: x = -1
The graph