Mister Exam
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How to use it?
- Equation:
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Equation 3*x^2-12*x+12=0
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Equation 23-3(7-x)=8
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Equation x+(-23)=-7
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Equation y*20=80*3
- Express {x} in terms of y where:
- 12*x+10*y=14
- -16*x+14*y=3
- -18*x+2*y=12
- -14*x-10*y=16
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Identical expressions
- twenty-three - three (seven -x)= eight
- 23 minus 3(7 minus x) equally 8
- twenty minus three minus three (seven minus x) equally eight
- 23-37-x=8
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Similar expressions
- 23-3(7+x)=8
- 23+3(7-x)=8
23-3(7-x)=8 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:
$$3 x = 6$$
Divide both parts of the equation by 3
We get the answer: x = 2
23-3*(7-x) = 8
Expand brackets in the left part
23-3*7+3*x = 8
Looking for similar summands in the left part:
2 + 3*x = 8
Move free summands (without x)
from left part to right part, we given:
$$3 x = 6$$
Divide both parts of the equation by 3
x = 6 / (3)
We get the answer: x = 2
The graph