Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+9=(x+9)^2
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Equation -x=4-3(3x-8)
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Equation 9x-7=6x+14
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Equation x+3=-9*x
- Express {x} in terms of y where:
- 1*x-6*y=-19
- -1*x-20*y=-17
- -13*x+7*y=11
- -13*x-19*y=17
- Graphing y =:
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x+3
- -9*x
- Inequation:
- x+3
- Canonical form:
- x+3
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Identical expressions
- x+ three =- nine *x
- x plus 3 equally minus 9 multiply by x
- x plus three equally minus nine multiply by x
- x+3=-9x
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Similar expressions
- x-3=-9*x
- -9*8-9x=4x+5
- 8sin^2(2x)+3sin(4x)=7
- (9/13)x+(3/26)x=21
- 3sin(x)^2-3cos(x)-6sin(x)+2sin(2x)+3=0
- -9(10x-9)-7(3x-4)-4(7-9x)=4(4-7x)-9(8x+3)
- x+3=+9*x
- 1/(3x+1)-2/(3x-1)-5x/(9x^2-1)=(3x^2)/(1-9x^2)
x+3=-9*x 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:
$$x = - 9 x - 3$$
Move the summands with the unknown x
from the right part to the left part:
$$10 x = -3$$
Divide both parts of the equation by 10
We get the answer: x = -3/10
x+3 = -9*x
Move free summands (without x)
from left part to right part, we given:
$$x = - 9 x - 3$$
Move the summands with the unknown x
from the right part to the left part:
$$10 x = -3$$
Divide both parts of the equation by 10
x = -3 / (10)
We get the answer: x = -3/10
Sum and product of roots
[src]
sum
-3/10
$$- \frac{3}{10}$$
=
-3/10
$$- \frac{3}{10}$$
product
-3/10
$$- \frac{3}{10}$$
=
-3/10
$$- \frac{3}{10}$$
-3/10
The graph