Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 4(x-1)=2(2x-8)+12
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Equation x/4+x=12
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Equation 5^x=6-x
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Equation 3*x=0
- Express {x} in terms of y where:
- -16*x-9*y=-1
- 4*x+13*y=8
- 14*x+17*y=19
- 3*x-11*y=20
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Identical expressions
- twenty-eight - five (2x- three)= thirteen -6x
- 28 minus 5(2x minus 3) equally 13 minus 6x
- twenty minus eight minus five (2x minus three) equally thirteen minus 6x
- 28-52x-3=13-6x
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Similar expressions
- sqrt(10+x)+5=-2*x^13-6*x
- 28+5(2x-3)=13-6x
- 28-5(2x+3)=13-6x
- 28-5(2x-3)=13+6x
- 6(x+1)^3-6x^3=54
28-5(2x-3)=13-6x 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:
$$- 10 x = - 6 x - 30$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-4\right) x = -30$$
Divide both parts of the equation by -4
We get the answer: x = 15/2
28-5*(2*x-3) = 13-6*x
Expand brackets in the left part
28-5*2*x+5*3 = 13-6*x
Looking for similar summands in the left part:
43 - 10*x = 13-6*x
Move free summands (without x)
from left part to right part, we given:
$$- 10 x = - 6 x - 30$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-4\right) x = -30$$
Divide both parts of the equation by -4
x = -30 / (-4)
We get the answer: x = 15/2
Sum and product of roots
[src]
sum
15/2
$$\frac{15}{2}$$
=
15/2
$$\frac{15}{2}$$
product
15/2
$$\frac{15}{2}$$
=
15/2
$$\frac{15}{2}$$
15/2