Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 9^x-8*3^x-9=0
- Equation x+y=4
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Equation 5x+8=-12
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Equation x/9+x=-3
- Express {x} in terms of y where:
- 18*x+17*y=-14
- 16*x-17*y=-15
- -4*x-4*y=19
- 15*x+1*y=19
- Derivative of:
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3x-1
- Integral of d{x}:
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3x-1
- Graphing y =:
- 3x-1
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Identical expressions
- 3x- one =2x-(four -x)
- 3x minus 1 equally 2x minus (4 minus x)
- 3x minus one equally 2x minus (four minus x)
- 3x-1=2x-4-x
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Similar expressions
- 3x+1=2x-(4-x)
- (x-1)^3-x^2*(x-4)-(x+2)*(x-2)=0
- x(2x-4)-x²=4x+x²-24
- (2x-5)^2-3(x-4)(x+4)=(x+6)(2x-4)-(x-8)
- 3x-1=2x-(4+x)
- 3x-1=2x+(4-x)
- 3*x-1=10*x-15
3x-1=2x-(4-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:
$$3 x = 3 x - 3$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = -3$$
This equation has no roots
3*x-1 = 2*x-(4-x)
Expand brackets in the right part
3*x-1 = 2*x-4+x
Looking for similar summands in the right part:
-1 + 3*x = -4 + 3*x
Move free summands (without x)
from left part to right part, we given:
$$3 x = 3 x - 3$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = -3$$
This equation has no roots
The graph