Mister Exam
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How to use it?
- Equation:
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Equation x^2+7*x+12=0
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Equation 12/x=3
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Equation 7x-9=40
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Equation (x-2)^2=(x-8)^2
- Express {x} in terms of y where:
- -6*x-11*y=-20
- -15*x+7*y=1
- -1*x-20*y=1
- -1*x-15*y=13
- Derivative of:
- 40
- Canonical form:
- 40
- Sum of series:
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40
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Identical expressions
- 7x- nine = forty
- 7x minus 9 equally 40
- 7x minus nine equally forty
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Similar expressions
- (x-17)(x-9)=105
- 7x+9=40
- 2*x^2+7*x-9=0
7x-9=40 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$7 x = 49$$
Divide both parts of the equation by 7
We get the answer: x = 7
7*x-9 = 40
Move free summands (without x)
from left part to right part, we given:
$$7 x = 49$$
Divide both parts of the equation by 7
x = 49 / (7)
We get the answer: x = 7
The graph