Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation sin(x)=0
-
Equation x^2=64
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Equation z^3=1
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Equation 2^x=-1
- Express {x} in terms of y where:
- -7*x+19*y=-8
- 5*x+8*y=6
- 6*x+14*y=-7
- 3*x+6*y=16
- Derivative of:
- 14
- Integral of d{x}:
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14
- Sum of series:
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14
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Identical expressions
- fifteen - four *(seven -x)= fourteen
- 15 minus 4 multiply by (7 minus x) equally 14
- fifteen minus four multiply by (seven minus x) equally fourteen
- 15-4(7-x)=14
- 15-47-x=14
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Similar expressions
- 15-4*(7+x)=14
- 15+4*(7-x)=14
15-4*(7-x)=14 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:
$$4 x = 27$$
Divide both parts of the equation by 4
We get the answer: x = 27/4
15-4*(7-x) = 14
Expand brackets in the left part
15-4*7+4*x = 14
Looking for similar summands in the left part:
-13 + 4*x = 14
Move free summands (without x)
from left part to right part, we given:
$$4 x = 27$$
Divide both parts of the equation by 4
x = 27 / (4)
We get the answer: x = 27/4
Sum and product of roots
[src]
sum
27/4
$$\frac{27}{4}$$
=
27/4
$$\frac{27}{4}$$
product
27/4
$$\frac{27}{4}$$
=
27/4
$$\frac{27}{4}$$
27/4