Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -7*x-20*y=-5
- 5*x-6*y=3
- -20*x+17*y=-16
- -8*x-2*y=-15
- Equation:
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Equation sin(x)=cos(x)
-
Equation x^3=3
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Equation cos(x)=(-1/2)
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Equation sin(x-1)=0
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Identical expressions
- - seven *x- sixteen *y= eight
- minus 7 multiply by x minus 16 multiply by y equally 8
- minus seven multiply by x minus sixteen multiply by y equally eight
- -7x-16y=8
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Similar expressions
- 7*x-16*y=8
- -7*x+16*y=8
Express x in terms of y where -7*x-16*y=8
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:
$$- 7 x = 16 y + 8$$
Divide both parts of the equation by -7
We get the answer: x = -8/7 - 16*y/7
-7*x-16*y = 8
Looking for similar summands in the left part:
-16*y - 7*x = 8
Move the summands with the other variables
from left part to right part, we given:
$$- 7 x = 16 y + 8$$
Divide both parts of the equation by -7
x = 8 + 16*y / (-7)
We get the answer: x = -8/7 - 16*y/7
Rapid solution
[src]
8 16*re(y) 16*I*im(y)
x1 = - - - -------- - ----------
7 7 7
$$x_{1} = - \frac{16 \operatorname{re}{\left(y\right)}}{7} - \frac{16 i \operatorname{im}{\left(y\right)}}{7} - \frac{8}{7}$$
x1 = -16*re(y)/7 - 16*i*im(y)/7 - 8/7