Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 15-x=8
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Equation 2x=5
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Equation 3/8*x+15=1/6*x+10
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Equation (x-4)^2-25=0
- Express {x} in terms of y where:
- -9*x+8*y=-11
- 2*x+10*y=-10
- 18*x-7*y=-13
- -11*x-3*y=-15
- Graphing y =:
- 0,2x-4
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Identical expressions
- zero ,1x+ nine = zero ,2x- four
- 0,1x plus 9 equally 0,2x minus 4
- zero ,1x plus nine equally zero ,2x minus four
- 0,1x+9=O,2x-4
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Similar expressions
- 0,1x-9=0,2x-4
- 3*10^(-10)*x^2+0,1*x+90=0
- -0,2x*(-4)=-0.08
- 0,3(6-x)=1,7-0,2(x-4)
- 0,2(x-4)=20-0,2x
- 0,1x+9=0,2x+4
- 0,2(x-4)=0,5(6+x)-2,6
0,1x+9=0,2x-4 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
Expand brackets in the right part
Move free summands (without x)
from left part to right part, we given:
$$\frac{x}{10} = \frac{x}{5} - 13$$
Move the summands with the unknown x
from the right part to the left part:
$$- \frac{x}{10} = -13$$
Divide both parts of the equation by -1/10
We get the answer: x = 130
(1/10)*x+9 = (1/5)*x-4
Expand brackets in the left part
1/10x+9 = (1/5)*x-4
Expand brackets in the right part
1/10x+9 = 1/5x-4
Move free summands (without x)
from left part to right part, we given:
$$\frac{x}{10} = \frac{x}{5} - 13$$
Move the summands with the unknown x
from the right part to the left part:
$$- \frac{x}{10} = -13$$
Divide both parts of the equation by -1/10
x = -13 / (-1/10)
We get the answer: x = 130
Sum and product of roots
[src]
sum
0 + 130
$$0 + 130$$
=
130
$$130$$
product
1*130
$$1 \cdot 130$$
=
130
$$130$$
130
The graph