Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 7*x-2*y=18
- 18*x+19*y=7
- 8*x-13*y=-12
- -10*x+13*y=5
- Equation:
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Equation 2*x^2+5*x-12=0
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Equation x^2+2x-8=0
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Equation 6x+2=-1
- Equation (x^2-25)^2+(x^2+3x-10)^2=0
- Limit of the function:
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-5
- -5
- Derivative of:
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-5
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Identical expressions
- seven *x- four *y=- five
- 7 multiply by x minus 4 multiply by y equally minus 5
- seven multiply by x minus four multiply by y equally minus five
- 7x-4y=-5
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Similar expressions
- 7*x-4*y=+5
- 7*x+4*y=-5
Express x in terms of y where 7*x-4*y=-5
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:
$$7 x = 4 y - 5$$
Divide both parts of the equation by 7
We get the answer: x = -5/7 + 4*y/7
7*x-4*y = -5
Looking for similar summands in the left part:
-4*y + 7*x = -5
Move the summands with the other variables
from left part to right part, we given:
$$7 x = 4 y - 5$$
Divide both parts of the equation by 7
x = -5 + 4*y / (7)
We get the answer: x = -5/7 + 4*y/7
Rapid solution
[src]
5 4*re(y) 4*I*im(y)
x1 = - - + ------- + ---------
7 7 7
$$x_{1} = \frac{4 \operatorname{re}{\left(y\right)}}{7} + \frac{4 i \operatorname{im}{\left(y\right)}}{7} - \frac{5}{7}$$
x1 = 4*re(y)/7 + 4*i*im(y)/7 - 5/7