Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -5*x-20*y=-7
- 15*x+12*y=-11
- -3*x-6*y=-15
- 3*x-6*y=-5
- Equation:
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Equation x^3=3
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Equation sin(x)=√3/2
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Equation -4/7*x^2+28=0
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Equation 8,4(y-17,9)=4,2
- Limit of the function:
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-19
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Identical expressions
- two *x- nine *y=- nineteen
- 2 multiply by x minus 9 multiply by y equally minus 19
- two multiply by x minus nine multiply by y equally minus nineteen
- 2x-9y=-19
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Similar expressions
- 2*x-9*y=+19
- 2*x+9*y=-19
Express x in terms of y where 2*x-9*y=-19
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 the summands with the other variables
from left part to right part, we given:
$$2 x = 9 y - 19$$
Divide both parts of the equation by 2
We get the answer: x = -19/2 + 9*y/2
2*x-9*y = -19
Looking for similar summands in the left part:
-9*y + 2*x = -19
Move the summands with the other variables
from left part to right part, we given:
$$2 x = 9 y - 19$$
Divide both parts of the equation by 2
x = -19 + 9*y / (2)
We get the answer: x = -19/2 + 9*y/2
Rapid solution
[src]
19 9*re(y) 9*I*im(y)
x1 = - -- + ------- + ---------
2 2 2
$$x_{1} = \frac{9 \operatorname{re}{\left(y\right)}}{2} + \frac{9 i \operatorname{im}{\left(y\right)}}{2} - \frac{19}{2}$$
x1 = 9*re(y)/2 + 9*i*im(y)/2 - 19/2