Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2=-3
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Equation 1/x^2+2/x-3=0
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Equation 4=7-6(5x-1)
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Equation cos(x)=-sin(x)
- Express {x} in terms of y where:
- 18*x+17*y=-14
- 16*x-17*y=-15
- -4*x-4*y=19
- -3*x+19*y=16
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Identical expressions
- four = seven - six (5x- one)
- 4 equally 7 minus 6(5x minus 1)
- four equally seven minus six (5x minus one)
- 4=7-65x-1
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Similar expressions
- 4=7+6(5x-1)
- 4=7-6(5x+1)
4=7-6(5x-1) equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the right part
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$0 = 9 - 30 x$$
Move the summands with the unknown x
from the right part to the left part:
$$30 x = 9$$
Divide both parts of the equation by 30
We get the answer: x = 3/10
4 = 7-6*(5*x-1)
Expand brackets in the right part
4 = 7-6*5*x+6*1
Looking for similar summands in the right part:
4 = 13 - 30*x
Move free summands (without x)
from left part to right part, we given:
$$0 = 9 - 30 x$$
Move the summands with the unknown x
from the right part to the left part:
$$30 x = 9$$
Divide both parts of the equation by 30
x = 9 / (30)
We get the answer: x = 3/10
Sum and product of roots
[src]
sum
3/10
$$\frac{3}{10}$$
=
3/10
$$\frac{3}{10}$$
product
3/10
$$\frac{3}{10}$$
=
3/10
$$\frac{3}{10}$$
3/10
The graph