Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x+7*4=40
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Equation 4*x-8=x+1
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Equation z^2+z+2=0
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Equation -x^2+6*x-7=0
- Express {x} in terms of y where:
- -13*x-14*y=-14
- -7*x+7*y=15
- -11*x+20*y=-6
- -2*x+7*y=-9
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Identical expressions
- two x+ one ,2= four
- 2x plus 1,2 equally 4
- two x plus one ,2 equally four
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Similar expressions
- 2x-1,2=4
2x+1,2=4 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
Move free summands (without x)
from left part to right part, we given:
$$2 x = \frac{14}{5}$$
Divide both parts of the equation by 2
We get the answer: x = 7/5
2*x+(6/5) = 4
Expand brackets in the left part
2*x+6/5 = 4
Move free summands (without x)
from left part to right part, we given:
$$2 x = \frac{14}{5}$$
Divide both parts of the equation by 2
x = 14/5 / (2)
We get the answer: x = 7/5
Sum and product of roots
[src]
sum
7/5
$$\frac{7}{5}$$
=
7/5
$$\frac{7}{5}$$
product
7/5
$$\frac{7}{5}$$
=
7/5
$$\frac{7}{5}$$
7/5