Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 5*sin(x)+cos(x)=5
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Equation 4*x^2+7=7+24*x
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Equation 2x^2-3x-2=0
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Equation x^2-7*x+10=0
- Express {x} in terms of y where:
- 17*x-19*y=-12
- 3*x+19*y=4
- 13*x-1*y=-20
- -16*x-9*y=-1
- Sum of series:
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25
- Integral of d{x}:
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25
- Canonical form:
- 25
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Identical expressions
- 15x-8x+ four = twenty-five
- 15x minus 8x plus 4 equally 25
- 15x minus 8x plus four equally twenty minus five
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Similar expressions
- 3.8x-1.2*(5-2x)=2.6*(x-3)-0.9*(2-4x)
- 15x+8x+4=25
- 15x-8x-4=25
- -9-2*(5-x)=-3*x+9
15x-8x+4=25 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$7 x = 21$$
Divide both parts of the equation by 7
We get the answer: x = 3
15*x-8*x+4 = 25
Looking for similar summands in the left part:
4 + 7*x = 25
Move free summands (without x)
from left part to right part, we given:
$$7 x = 21$$
Divide both parts of the equation by 7
x = 21 / (7)
We get the answer: x = 3
The graph