Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation -15x=45
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Equation x^2=15
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Equation x^4=16
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Equation 3/5*x=1
- Express {x} in terms of y where:
- 18*x+17*y=-14
- -1*x-6*y=18
- 16*x-17*y=-15
- -4*x-4*y=19
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Identical expressions
- x- five (x- three)= five
- x minus 5(x minus 3) equally 5
- x minus five (x minus three) equally five
- x-5x-3=5
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Similar expressions
- (3x-1)*(2x-3)=(6x-5)*(x-3)+4
- x-5(x+3)=5
- x+5(x-3)=5
- (x-5)*(x-3)-(x+1)*(x-4)=6
- (x-7)(x-5)(x-3)(x-1)=-16
- 9x-5x-3+2x+1=4x+7-3x+4
x-5(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:
$$- 4 x = -10$$
Divide both parts of the equation by -4
We get the answer: x = 5/2
x-5*(x-3) = 5
Expand brackets in the left part
x-5*x+5*3 = 5
Looking for similar summands in the left part:
15 - 4*x = 5
Move free summands (without x)
from left part to right part, we given:
$$- 4 x = -10$$
Divide both parts of the equation by -4
x = -10 / (-4)
We get the answer: x = 5/2
Sum and product of roots
[src]
sum
5/2
$$\frac{5}{2}$$
=
5/2
$$\frac{5}{2}$$
product
5/2
$$\frac{5}{2}$$
=
5/2
$$\frac{5}{2}$$
5/2