Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+2x+1=0
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Equation (5*x+4)/2+3=9*x/4
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Equation 7*x^3-28*x=0
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Equation sinx=1
- Express {x} in terms of y where:
- -19*x-10*y=-19
- -12*x-2*y=11
- -7*x-15*y=17
- -17*x-7*y=5
- Sum of series:
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27
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Identical expressions
- twenty-seven =2y+ thirty-nine
- 27 equally 2y plus 39
- twenty minus seven equally 2y plus thirty minus nine
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Similar expressions
- 27=2y-39
- (x^4-256)/(16-x^2)=2*(7*x+12)
27=2y+39 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without y)
from left part to right part, we given:
$$0 = 2 y + 12$$
Move the summands with the unknown y
from the right part to the left part:
$$\left(-2\right) y = 12$$
Divide both parts of the equation by -2
We get the answer: y = -6
27 = 2*y+39
Move free summands (without y)
from left part to right part, we given:
$$0 = 2 y + 12$$
Move the summands with the unknown y
from the right part to the left part:
$$\left(-2\right) y = 12$$
Divide both parts of the equation by -2
y = 12 / (-2)
We get the answer: y = -6