Mister Exam
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How to use it?
- Equation:
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Equation x^2-8*x+17=0
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Equation 2-3(7+2x)=11
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Equation x^2-2x+1=0
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Equation 7+8x=-2x-5
- Express {x} in terms of y where:
- 7*x+19*y=12
- 17*x+20*y=-12
- 18*x-11*y=2
- 2*x-8*y=4
- Sum of series:
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11
- Integral of d{x}:
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11
- Derivative of:
- 11
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Identical expressions
- two - three (seven +2x)= eleven
- 2 minus 3(7 plus 2x) equally 11
- two minus three (seven plus 2x) equally eleven
- 2-37+2x=11
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Similar expressions
- 2+3(7+2x)=11
- 2-3(7-2x)=11
2-3(7+2x)=11 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:
$$- 6 x = 30$$
Divide both parts of the equation by -6
We get the answer: x = -5
2-3*(7+2*x) = 11
Expand brackets in the left part
2-3*7-3*2*x = 11
Looking for similar summands in the left part:
-19 - 6*x = 11
Move free summands (without x)
from left part to right part, we given:
$$- 6 x = 30$$
Divide both parts of the equation by -6
x = 30 / (-6)
We get the answer: x = -5
The graph