Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 81*x^3+18*x^2+x=0
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Equation 6=8-5(7x-1)
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Equation (-x-4)*(3*x+3)=0
- Equation x^2-144=0
- Express {x} in terms of y where:
- -14*x-8*y=20
- -1*x+4*y=-10
- 8*x+6*y=20
- -11*x-19*y=14
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Identical expressions
- three *(two -x)- two *(5x+ four)= six
- 3 multiply by (2 minus x) minus 2 multiply by (5x plus 4) equally 6
- three multiply by (two minus x) minus two multiply by (5x plus four) equally six
- 3(2-x)-2(5x+4)=6
- 32-x-25x+4=6
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Similar expressions
- 3*(2-x)+2*(5x+4)=6
- 3*(2+x)-2*(5x+4)=6
- 3*(2-x)-2*(5x-4)=6
3*(2-x)-2*(5x+4)=6 equation
The teacher will be very surprised to see your correct solution 😉
The solution
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[src]
3*(2 - x) - 2*(5*x + 4) = 6
$$3 \left(2 - x\right) - 2 \left(5 x + 4\right) = 6$$
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:
$$- 13 x = 8$$
Divide both parts of the equation by -13
We get the answer: x = -8/13
3*(2-x)-2*(5*x+4) = 6
Expand brackets in the left part
3*2-3*x-2*5*x-2*4 = 6
Looking for similar summands in the left part:
-2 - 13*x = 6
Move free summands (without x)
from left part to right part, we given:
$$- 13 x = 8$$
Divide both parts of the equation by -13
x = 8 / (-13)
We get the answer: x = -8/13
Sum and product of roots
[src]
sum
-8/13
$$- \frac{8}{13}$$
=
-8/13
$$- \frac{8}{13}$$
product
-8/13
$$- \frac{8}{13}$$
=
-8/13
$$- \frac{8}{13}$$
-8/13