Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation x+y=15
- Equation a^2*x^2-21*a^2+a*x+1=0
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Equation 5-x=4(x-3)
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Equation 2*x^2+5*x-25=13*x+17
- Express {x} in terms of y where:
- -16*x-20*y=-13
- -14*x+12*y=-20
- 10*x+15*y=-9
- -3*x+6*y=4
- Integral of d{x}:
-
45x
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Identical expressions
- fifteen (x- ten)=45x
- 15(x minus 10) equally 45x
- fifteen (x minus ten) equally 45x
- 15x-10=45x
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Similar expressions
- 10*x^(5)+42*x^(4)-137*x^(3)-604*x^(2)-615*x-100=0
- (2x^2-5x+4)/(3x-2)+(15x-10)/(2x^2-5x+4)=6
- 45(x+1)^2=243x
- -x^2+15x-102=0
- 5/2*x^2+15*x-100=0
- -4*(5*x-3)=-9-18*(x-7)
- (0,45*x)+(0,35*91,6)+14=70
- 4*5^(x-1)-60*5^x-1+1=0
- 15(x+10)=45x
15(x-10)=45x 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
Move free summands (without x)
from left part to right part, we given:
$$15 x = 45 x + 150$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-30\right) x = 150$$
Divide both parts of the equation by -30
We get the answer: x = -5
15*(x-10) = 45*x
Expand brackets in the left part
15*x-15*10 = 45*x
Move free summands (without x)
from left part to right part, we given:
$$15 x = 45 x + 150$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-30\right) x = 150$$
Divide both parts of the equation by -30
x = 150 / (-30)
We get the answer: x = -5