Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+2*x+10=0
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Equation 2^4-2*x=64
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Equation x^2+3*x+9=0
- Equation x^2-x+30=0
- Express {x} in terms of y where:
- -18*x-3*y=2
- 5*x+20*y=-4
- 20*x-8*y=13
- -16*x+18*y=9
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Identical expressions
- x+ three / seven =3x- two / two
- x plus 3 divide by 7 equally 3x minus 2 divide by 2
- x plus three divide by seven equally 3x minus two divide by two
- x+3 divide by 7=3x-2 divide by 2
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Similar expressions
- (x+3)/7=(2x-1)/5
- (3x-2)/2=3/5
- x+3/7=3*x-2/2
- x-3/7=3x-2/2
- x+3/7=3x+2/2
x+3/7=3x-2/2 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:
$$x = 3 x - \frac{10}{7}$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-2\right) x = - \frac{10}{7}$$
Divide both parts of the equation by -2
We get the answer: x = 5/7
x+3/7 = 3*x-2/2
Move free summands (without x)
from left part to right part, we given:
$$x = 3 x - \frac{10}{7}$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-2\right) x = - \frac{10}{7}$$
Divide both parts of the equation by -2
x = -10/7 / (-2)
We get the answer: x = 5/7
Sum and product of roots
[src]
sum
5/7
$$\frac{5}{7}$$
=
5/7
$$\frac{5}{7}$$
product
5/7
$$\frac{5}{7}$$
=
5/7
$$\frac{5}{7}$$
5/7
The graph