Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation e^x=0
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Equation x^2=10
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Equation cos(x)=3
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Equation x^2-3x-4=0
- Express {x} in terms of y where:
- 2*x+2*y=-6
- 7*x+20*y=-17
- 12*x+14*y=-15
- -11*x+10*y=-9
- Canonical form:
- 65
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Identical expressions
- seventy -(2x+ four): four = sixty-five
- 70 minus (2x plus 4):4 equally 65
- seventy minus (2x plus four): four equally sixty minus five
- 70-2x+4:4=65
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Similar expressions
- 70-(2x-4):4=65
- 70+(2x+4):4=65
- 25^x-6*5^x+5=0
70-(2x+4):4=65 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:
$$- \frac{x}{2} = -4$$
Divide both parts of the equation by -1/2
We get the answer: x = 8
70-(2*x+4)/4 = 65
Expand brackets in the left part
70-2*x/4-4/4 = 65
Looking for similar summands in the left part:
69 - x/2 = 65
Move free summands (without x)
from left part to right part, we given:
$$- \frac{x}{2} = -4$$
Divide both parts of the equation by -1/2
x = -4 / (-1/2)
We get the answer: x = 8