Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 12-(4-x)^2=x(3-x)
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Equation 3^x=-3
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Equation x^2-7*x+5=0
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Equation (x+1)^2=0
- Express {x} in terms of y where:
- -11*x-14*y=6
- -17*x+9*y=-18
- 15*x+6*y=16
- 16*x-1*y=17
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Identical expressions
- three (x+)=x+ two (x+ nine)
- 3(x plus ) equally x plus 2(x plus 9)
- three (x plus ) equally x plus two (x plus nine)
- 3x+=x+2x+9
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Similar expressions
- 3*x+50=70
- 3x+5=-7x
- 1/3x+12=x
- -3x+9=0
- 3(x+)=x-2(x+9)
- 3(x-)=x+2(x+9)
- 3^x+3^x+1=4
- 3(x+)=x+2(x-9)
3(x+)=x+2(x+9) 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 right part:
Move the summands with the unknown x
from the right part to the left part:
$$0 = 18$$
This equation has no roots
3*(x) = x+2*(x+9)
Expand brackets in the left part
3*x = x+2*(x+9)
Expand brackets in the right part
3*x = x+2*x+2*9
Looking for similar summands in the right part:
3*x = 18 + 3*x
Move the summands with the unknown x
from the right part to the left part:
$$0 = 18$$
This equation has no roots