Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2-2x=0
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Equation x^2-3x-10=0
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Equation (x-119)/(x+7)=-5
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Equation x/4+13=x+1
- Express {x} in terms of y where:
- 15*x-5*y=-5
- 18*x+20*y=-2
- 15*x+7*y=2
- 12*x-20*y=10
- Integral of d{x}:
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-7
- Derivative of:
- -7
- Canonical form:
- -7
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Identical expressions
- 12x+ three (x- four)=- seven
- 12x plus 3(x minus 4) equally minus 7
- 12x plus three (x minus four) equally minus seven
- 12x+3x-4=-7
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Similar expressions
- 12x+3(x-4)=+7
- 12x+3(x+4)=-7
- 12x-3(x-4)=-7
12x+3(x-4)=-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 left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$15 x = 5$$
Divide both parts of the equation by 15
We get the answer: x = 1/3
12*x+3*(x-4) = -7
Expand brackets in the left part
12*x+3*x-3*4 = -7
Looking for similar summands in the left part:
-12 + 15*x = -7
Move free summands (without x)
from left part to right part, we given:
$$15 x = 5$$
Divide both parts of the equation by 15
x = 5 / (15)
We get the answer: x = 1/3
Sum and product of roots
[src]
sum
1/3
$$\frac{1}{3}$$
=
1/3
$$\frac{1}{3}$$
product
1/3
$$\frac{1}{3}$$
=
1/3
$$\frac{1}{3}$$
1/3