Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 3*x^2-2=0
-
Equation x+(x*3)=168
- Equation x-1=1+(1/2)*y
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Equation -4+x/5=x+4/2
- Express {x} in terms of y where:
- 15*x+2*y=8
- 1*x+4*y=-11
- 5*x-18*y=-17
- -9*x+6*y=18
- Graphing y =:
- x+4/2
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Identical expressions
- - four +x/ five =x+ four / two
- minus 4 plus x divide by 5 equally x plus 4 divide by 2
- minus four plus x divide by five equally x plus four divide by two
- -4+x divide by 5=x+4 divide by 2
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Similar expressions
- 4+x/5=x+4/2
- -4+x/5=x-4/2
- (10*x^3+51*x^2+5*x+4)/(20*x^3+63*x^2+8.1*x+5.1)=0
- 2*(3*x+4)/(2*sqrt(x)-x)=0
- (sqrt(x+4)+sqrt(x+4))/2=x+sqrt(x^(2)-16)-6
- ((3/10)*y-(2/5)*x)*((9/100)*y^2+(3/25)*y*x+(4/25)*x^2)=0
- -4-x/5=x+4/2
-4+x/5=x+4/2 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$\frac{x}{5} = x + 6$$
Move the summands with the unknown x
from the right part to the left part:
$$\frac{\left(-4\right) x}{5} = 6$$
Divide both parts of the equation by -4/5
We get the answer: x = -15/2
-4+x/5 = x+4/2
Move free summands (without x)
from left part to right part, we given:
$$\frac{x}{5} = x + 6$$
Move the summands with the unknown x
from the right part to the left part:
$$\frac{\left(-4\right) x}{5} = 6$$
Divide both parts of the equation by -4/5
x = 6 / (-4/5)
We get the answer: x = -15/2
Sum and product of roots
[src]
sum
-15/2
$$- \frac{15}{2}$$
=
-15/2
$$- \frac{15}{2}$$
product
-15/2
$$- \frac{15}{2}$$
=
-15/2
$$- \frac{15}{2}$$
-15/2
The graph