Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation -x^2+6*x-7=0
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Equation -x^3+4*x^2+4*x-16=0
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Equation x/7=6
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Equation x^2-15*x+54=0
- Express {x} in terms of y where:
- -2*x-3*y=10
- 10*x+12*y=-12
- 13*x+11*y=10
- 17*x-7*y=-15
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Identical expressions
- twenty - four *x= eight *(three *x+(five / two))- twenty-eight *x
- 20 minus 4 multiply by x equally 8 multiply by (3 multiply by x plus (5 divide by 2)) minus 28 multiply by x
- twenty minus four multiply by x equally eight multiply by (three multiply by x plus (five divide by two)) minus twenty minus eight multiply by x
- 20-4x=8(3x+(5/2))-28x
- 20-4x=83x+5/2-28x
- 20-4*x=8*(3*x+(5 divide by 2))-28*x
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Similar expressions
- 20-4x=8(3x+2,5)-28x
- 20-4x=24x+20-28x
- 23x-20-4x=18
- 20-4*x=8*(3*x-(5/2))-28*x
- 20-4*x=8*(3*x+(5/2))+28*x
- 20-4x=8(3x+1,5)-28x
- 20+4*x=8*(3*x+(5/2))-28*x
20-4*x=8*(3*x+(5/2))-28*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:
$$- 4 x = - 4 x$$
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
20-4*x = 8*(3*x+(5/2))-28*x
Expand brackets in the right part
20-4*x = 8*3*x+8*5/2)-28*x
Looking for similar summands in the right part:
20 - 4*x = 20 - 4*x
Move free summands (without x)
from left part to right part, we given:
$$- 4 x = - 4 x$$
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