Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+3x+2=0
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Equation z^2-6*z+10=0
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Equation x^2+5x+6=0
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Equation 1*(x-1)*(x-3)=0
- Express {x} in terms of y where:
- -2*x+20*y=-2
- -20*x-6*y=4
- 6*x+9*y=-9
- -20*x-13*y=15
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Identical expressions
- -x/ seven +x= fifteen / seven
- minus x divide by 7 plus x equally 15 divide by 7
- minus x divide by seven plus x equally fifteen divide by seven
- -x divide by 7+x=15 divide by 7
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Similar expressions
- -a=(41/6-31/15)/(7/5)
- -x/7-x=15/7
- x/7+x=15/7
- (-x)/7+x=6
-x/7+x=15/7 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Looking for similar summands in the left part:
Divide both parts of the equation by 6/7
We get the answer: x = 5/2
-x/7+x = 15/7
Looking for similar summands in the left part:
6*x/7 = 15/7
Divide both parts of the equation by 6/7
x = 15/7 / (6/7)
We get the answer: x = 5/2
Sum and product of roots
[src]
sum
5/2
$$\frac{5}{2}$$
=
5/2
$$\frac{5}{2}$$
product
5/2
$$\frac{5}{2}$$
=
5/2
$$\frac{5}{2}$$
5/2
The graph