Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x+7*4=40
-
Equation -x^3+4*x^2+4*x-16=0
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Equation x/7=6
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Equation 2x-cosx=0
- Express {x} in terms of y where:
- 13*x-12*y=10
- -12*x-19*y=16
- 4*x-7*y=11
- 18*x-11*y=13
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Identical expressions
- x+(x+ forty %)= three thousand, six hundred
- x plus (x plus 40%) equally 3600
- x plus (x plus forty %) equally three thousand, six hundred
- x+x+40%=3600
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Similar expressions
- x+x+40=84
- x-(x+40%)=3600
- x+(x-40%)=3600
x+(x+40%)=3600 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
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$2 x = \frac{17998}{5}$$
Divide both parts of the equation by 2
We get the answer: x = 8999/5
x+(x+40*(1/100)) = 3600
Expand brackets in the left part
x+x+40*+1/100) = 3600
Looking for similar summands in the left part:
2/5 + 2*x = 3600
Move free summands (without x)
from left part to right part, we given:
$$2 x = \frac{17998}{5}$$
Divide both parts of the equation by 2
x = 17998/5 / (2)
We get the answer: x = 8999/5
Sum and product of roots
[src]
sum
8999/5
$$\frac{8999}{5}$$
=
8999/5
$$\frac{8999}{5}$$
product
8999/5
$$\frac{8999}{5}$$
=
8999/5
$$\frac{8999}{5}$$
8999/5