Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 5=12-5(4x-1)
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Equation 10x-20=5x
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Equation x^2+4*x-32=0
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Equation 4*(x-6)=x-9
- Express {x} in terms of y where:
- -12*x-2*y=-15
- -4*x+4*y=-9
- -19*x-2*y=-6
- -2*x+2*y=4
- Sum of series:
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13
- Derivative of:
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13
- Canonical form:
- 13
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Identical expressions
- thirteen =(2x- one)* seven
- 13 equally (2x minus 1) multiply by 7
- thirteen equally (2x minus one) multiply by seven
- 13=(2x-1)7
- 13=2x-17
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Similar expressions
- 13=(2x+1)*7
- x^2*(x-17.711)=3.767*10^3
- (2*x-8)*(x+2)-(2*x-17)*x*pi*pi*x=(1/5)
- (2x+19)*(2x+14)-((27-(2x+17)^3))/((((√(-2x-18)^2)+4)))=(-2x-17)*|x+8|-25
- log(x^2-1)/log(2)=log(2*x-17)/log(2)
13=(2x-1)*7 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the right part
Move free summands (without x)
from left part to right part, we given:
$$0 = 14 x - 20$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-14\right) x = -20$$
Divide both parts of the equation by -14
We get the answer: x = 10/7
13 = (2*x-1)*7
Expand brackets in the right part
13 = 2*x*7-1*7
Move free summands (without x)
from left part to right part, we given:
$$0 = 14 x - 20$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-14\right) x = -20$$
Divide both parts of the equation by -14
x = -20 / (-14)
We get the answer: x = 10/7
Sum and product of roots
[src]
sum
10/7
$$\frac{10}{7}$$
=
10/7
$$\frac{10}{7}$$
product
10/7
$$\frac{10}{7}$$
=
10/7
$$\frac{10}{7}$$
10/7