Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2-3x+5=0
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Equation 2x-2=0
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Equation (x-4)²+(x+9)²=2x²
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Equation x^3-3*x+2=0
- Express {x} in terms of y where:
- -13*x+16*y=18
- 18*x+5*y=-18
- 7*x+11*y=18
- -19*x-2*y=2
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Identical expressions
- two (x- twenty)=x
- 2(x minus 20) equally x
- two (x minus twenty) equally x
- 2x-20=x
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Similar expressions
- x^3+12*x-20=0
- 2(x+20)=x
- 2*(x-20)*(x+45)=0
- (a+2)2x-20=5a+4x
- 2*x-20-150=0
2(x-20)=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 left part
Move free summands (without x)
from left part to right part, we given:
$$2 x = x + 40$$
Move the summands with the unknown x
from the right part to the left part:
$$x = 40$$
We get the answer: x = 40
2*(x-20) = x
Expand brackets in the left part
2*x-2*20 = x
Move free summands (without x)
from left part to right part, we given:
$$2 x = x + 40$$
Move the summands with the unknown x
from the right part to the left part:
$$x = 40$$
We get the answer: x = 40
The graph