Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+2x+1=0
-
Equation cos(x)+1=0
- Equation 1/3x+20=1/13x-29
- Equation 25*x^2-400*x=0
- Express {x} in terms of y where:
- -5*x-7*y=16
- -7*x+13*y=-10
- -15*x+6*y=-1
- -2*x+15*y=14
- Canonical form:
- 120
- Limit of the function:
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120
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Identical expressions
- 2x+(x+ forty)= one hundred and twenty
- 2x plus (x plus 40) equally 120
- 2x plus (x plus forty) equally one hundred and twenty
- 2x+x+40=120
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Similar expressions
- 2x+(x-40)=120
- 2x-(x+40)=120
2x+(x+40)=120 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:
$$3 x = 80$$
Divide both parts of the equation by 3
We get the answer: x = 80/3
2*x+(x+40) = 120
Expand brackets in the left part
2*x+x+40 = 120
Looking for similar summands in the left part:
40 + 3*x = 120
Move free summands (without x)
from left part to right part, we given:
$$3 x = 80$$
Divide both parts of the equation by 3
x = 80 / (3)
We get the answer: x = 80/3
Sum and product of roots
[src]
sum
80/3
$$\frac{80}{3}$$
=
80/3
$$\frac{80}{3}$$
product
80/3
$$\frac{80}{3}$$
=
80/3
$$\frac{80}{3}$$
80/3