Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 3*x^2-8*x-3=0
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Equation 3*x=5
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Equation 4-x=1
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Equation (x+5)^2=0
- Express {x} in terms of y where:
- -17*x-11*y=16
- -9*x+8*y=-11
- 17*x+18*y=8
- 15*x-20*y=4
- Sum of series:
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2.8
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Identical expressions
- x- zero . two x=2. eight
- x minus 0.2x equally 2.8
- x minus zero . two x equally 2. eight
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Similar expressions
- 0.2x+8+(x-(0.2x+8))*0.3+6+(x-(0.2x+8)-((x-(0.2x+8))*0.3+6))*0.5+1+10=x
- x-0.2(x-3)=5
- x+0.2x=2.8
- x-0.2*x=1000
x-0.2x=2.8 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
Expand brackets in the right part
Looking for similar summands in the left part:
Divide both parts of the equation by 4/5
We get the answer: x = 7/2
x-(1/5)*x = (14/5)
Expand brackets in the left part
x-1/5x = (14/5)
Expand brackets in the right part
x-1/5x = 14/5
Looking for similar summands in the left part:
4*x/5 = 14/5
Divide both parts of the equation by 4/5
x = 14/5 / (4/5)
We get the answer: x = 7/2
Sum and product of roots
[src]
sum
7/2
$$\frac{7}{2}$$
=
7/2
$$\frac{7}{2}$$
product
7/2
$$\frac{7}{2}$$
=
7/2
$$\frac{7}{2}$$
7/2