Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -16*x-19*y=-4
- -9*x+17*y=-3
- -10*x-15*y=-11
- 2*x-20*y=-7
- Equation:
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Equation cos(x)-1=0
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Equation (x+3)^4-4(x+3)^2-5=0
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Equation x^2+14*x+24=0
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Equation 0*x=10
- Sum of series:
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-18
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Identical expressions
- eighteen *x+ five *y=- eighteen
- 18 multiply by x plus 5 multiply by y equally minus 18
- eighteen multiply by x plus five multiply by y equally minus eighteen
- 18x+5y=-18
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Similar expressions
- 18*x+5*y=+18
- 18*x-5*y=-18
Express x in terms of y where 18*x+5*y=-18
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:
$$18 x = - 5 y - 18$$
Divide both parts of the equation by 18
We get the answer: x = -1 - 5*y/18
18*x+5*y = -18
Looking for similar summands in the left part:
5*y + 18*x = -18
Move the summands with the other variables
from left part to right part, we given:
$$18 x = - 5 y - 18$$
Divide both parts of the equation by 18
x = -18 - 5*y / (18)
We get the answer: x = -1 - 5*y/18
Rapid solution
[src]
5*re(y) 5*I*im(y)
x1 = -1 - ------- - ---------
18 18
$$x_{1} = - \frac{5 \operatorname{re}{\left(y\right)}}{18} - \frac{5 i \operatorname{im}{\left(y\right)}}{18} - 1$$
x1 = -5*re(y)/18 - 5*i*im(y)/18 - 1