Mister Exam
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How to use it?
- Equation:
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Equation sin(2*x)=-1/2
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Equation x^2+6x-7=0
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Equation x+(7-2x)=10
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Equation 9^x-4*3^x+3=0
- Express {x} in terms of y where:
- -10*x+7*y=-12
- -15*x+3*y=8
- 18*x-10*y=-9
- -5*x+7*y=3
- Sum of series:
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10
- Derivative of:
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10
- Integral of d{x}:
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10
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Identical expressions
- x+(seven -2x)= ten
- x plus (7 minus 2x) equally 10
- x plus (seven minus 2x) equally ten
- x+7-2x=10
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Similar expressions
- x2+2*x+1+x2+2*x+7-2*x2=0
- x+20*2=x+7-2x
- (x-5)*(x+7)-2*(x-20)=0
- x-(7-2x)=10
- √(3*x+7)-2*x+2=0
- x+(7+2x)=10
x+(7-2x)=10 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
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- x = 3$$
Divide both parts of the equation by -1
We get the answer: x = -3
x+(7-2*x) = 10
Expand brackets in the left part
x+7-2*x = 10
Looking for similar summands in the left part:
7 - x = 10
Move free summands (without x)
from left part to right part, we given:
$$- x = 3$$
Divide both parts of the equation by -1
x = 3 / (-1)
We get the answer: x = -3
The graph