Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^4-4x^2+4=0
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Equation x^2+11*x+30=0
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Equation 6x^2+x-7=0
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Equation 68+x*6=164
- Express {x} in terms of y where:
- -3*x-20*y=17
- 13*x-15*y=16
- -10*x-16*y=13
- 11*x-3*y=13
- Derivative of:
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-2x
- Integral of d{x}:
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-2x
- Graphing y =:
- -2x
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Identical expressions
- 9x- three (x- one)=-2x
- 9x minus 3(x minus 1) equally minus 2x
- 9x minus three (x minus one) equally minus 2x
- 9x-3x-1=-2x
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Similar expressions
- 9x+3(x-1)=-2x
- 9x-3(x+1)=-2x
- 9^x-3^x-1=5
- 9x-3(x-1)=+2x
- 2*9^x-3^x^-1-9=0
9x-3(x-1)=-2x 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:
$$6 x = - 2 x - 3$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = -3$$
Divide both parts of the equation by 8
We get the answer: x = -3/8
9*x-3*(x-1) = -2*x
Expand brackets in the left part
9*x-3*x+3*1 = -2*x
Looking for similar summands in the left part:
3 + 6*x = -2*x
Move free summands (without x)
from left part to right part, we given:
$$6 x = - 2 x - 3$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = -3$$
Divide both parts of the equation by 8
x = -3 / (8)
We get the answer: x = -3/8
Sum and product of roots
[src]
sum
-3/8
$$- \frac{3}{8}$$
=
-3/8
$$- \frac{3}{8}$$
product
-3/8
$$- \frac{3}{8}$$
=
-3/8
$$- \frac{3}{8}$$
-3/8