Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation x^3+2*x^2-36*x-72=0
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Equation (x+10)^2=(2-x)^2
-
Equation -7-x=3x+17
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Equation -9а+8=-10а-2
- Express {x} in terms of y where:
- -17*x-19*y=-11
- -9*x+12*y=-6
- -9*x-2*y=-15
- -1*x-5*y=3
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Identical expressions
- x- zero . two (x- three)= five
- x minus 0.2(x minus 3) equally 5
- x minus zero . two (x minus three) equally five
- x-0.2x-3=5
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Similar expressions
- x+0.2(x-3)=5
- x-0.2(x+3)=5
x-0.2(x-3)=5 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:
$$\frac{4 x}{5} = \frac{22}{5}$$
Divide both parts of the equation by 4/5
We get the answer: x = 11/2
x-(1/5)*(x-3) = 5
Expand brackets in the left part
x-1/5x-3 = 5
Looking for similar summands in the left part:
3/5 + 4*x/5 = 5
Move free summands (without x)
from left part to right part, we given:
$$\frac{4 x}{5} = \frac{22}{5}$$
Divide both parts of the equation by 4/5
x = 22/5 / (4/5)
We get the answer: x = 11/2
Sum and product of roots
[src]
sum
11/2
$$\frac{11}{2}$$
=
11/2
$$\frac{11}{2}$$
product
11/2
$$\frac{11}{2}$$
=
11/2
$$\frac{11}{2}$$
11/2