Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation cos(x)-x=0
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Equation 15-4(7-x)=11
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Equation x+(8-3x)=12
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Equation 3*x-4/6=7/8
- Express {x} in terms of y where:
- 2*x+11*y=0
- 14*x-17*y=-4
- 18*x-10*y=-9
- -16*x-14*y=-18
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Identical expressions
- three (six +x)-(5x- three)= seven
- 3(6 plus x) minus (5x minus 3) equally 7
- three (six plus x) minus (5x minus three) equally seven
- 36+x-5x-3=7
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Similar expressions
- 3(6-x)-(5x-3)=7
- 3(6+x)-(5x+3)=7
- 3(6+x)+(5x-3)=7
3(6+x)-(5x-3)=7 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:
$$- 2 x = -14$$
Divide both parts of the equation by -2
We get the answer: x = 7
3*(6+x)-(5*x-3) = 7
Expand brackets in the left part
3*6+3*x-5*x+3 = 7
Looking for similar summands in the left part:
21 - 2*x = 7
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = -14$$
Divide both parts of the equation by -2
x = -14 / (-2)
We get the answer: x = 7