Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -13*x+7*y=-15
- -14*x-8*y=20
- -1*x+4*y=-10
- -2*x-19*y=3
- Equation:
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Equation 81*x^3+18*x^2+x=0
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Equation (4-x)^2=(x+17)^2
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Equation 6=8-5(7x-1)
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Equation -5+9x=10x+4
- Sum of series:
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-18
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Identical expressions
- - seven *x- nineteen *y=- eighteen
- minus 7 multiply by x minus 19 multiply by y equally minus 18
- minus seven multiply by x minus nineteen multiply by y equally minus eighteen
- -7x-19y=-18
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Similar expressions
- -7*x+19*y=-18
- -7*x-19*y=+18
- 7*x-19*y=-18
Express x in terms of y where -7*x-19*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:
$$- 7 x = 19 y - 18$$
Divide both parts of the equation by -7
We get the answer: x = 18/7 - 19*y/7
-7*x-19*y = -18
Looking for similar summands in the left part:
-19*y - 7*x = -18
Move the summands with the other variables
from left part to right part, we given:
$$- 7 x = 19 y - 18$$
Divide both parts of the equation by -7
x = -18 + 19*y / (-7)
We get the answer: x = 18/7 - 19*y/7
Rapid solution
[src]
18 19*re(y) 19*I*im(y)
x1 = -- - -------- - ----------
7 7 7
$$x_{1} = - \frac{19 \operatorname{re}{\left(y\right)}}{7} - \frac{19 i \operatorname{im}{\left(y\right)}}{7} + \frac{18}{7}$$
x1 = -19*re(y)/7 - 19*i*im(y)/7 + 18/7