Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 4-6*(x+2)=3-5*x
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Equation 4-6(x+2)=3-5x
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Equation 1+sin(x)=0
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Equation x^2-3*x+1=0
- Express {x} in terms of y where:
- 18*x-8*y=-2
- -11*x+15*y=7
- 6*x+17*y=3
- 1*x+10*y=-18
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Identical expressions
- X- three (x- four)=- two (x- eight)- four
- X minus 3(x minus 4) equally minus 2(x minus 8) minus 4
- X minus three (x minus four) equally minus two (x minus eight) minus four
- X-3x-4=-2x-8-4
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Similar expressions
- X+3(x-4)=-2(x-8)-4
- X-3(x-4)=-2(x-8)+4
- X-3(x-4)=-2(x+8)-4
- X-3(x-4)=+2(x-8)-4
- X-3(x+4)=-2(x-8)-4
X-3(x-4)=-2(x-8)-4 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
Expand brackets in the right part
Looking for similar summands in the left part:
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = 0$$
This equation is the identity and the solution: any x
x-3*(x-4) = -2*(x-8)-4
Expand brackets in the left part
x-3*x+3*4 = -2*(x-8)-4
Expand brackets in the right part
x-3*x+3*4 = -2*x+2*8-4
Looking for similar summands in the left part:
12 - 2*x = -2*x+2*8-4
Looking for similar summands in the right part:
12 - 2*x = 12 - 2*x
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = 0$$
This equation is the identity and the solution: any x
Rapid solution
[src]
This equation is the identity - the solution of the equation is any x
This equation is the identity - the solution of the equation is any x