Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 19*x+2*y=17
- 8*x-9*y=-1
- 13*x-1*y=-20
- 9*x+8*y=-4
- Equation:
-
Equation cos(x)-1=0
-
Equation x+5=7
-
Equation 16*x^3+8*x^2+x=0
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Equation 3/5*y=29/10-1/5
- Derivative of:
- -4
- Integral of d{x}:
-
-4
- Limit of the function:
- -4
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Identical expressions
- nine *x+ eight *y=- four
- 9 multiply by x plus 8 multiply by y equally minus 4
- nine multiply by x plus eight multiply by y equally minus four
- 9x+8y=-4
-
Similar expressions
- 9*x+8*y=+4
- 9*x-8*y=-4
Express x in terms of y where 9*x+8*y=-4
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:
$$9 x = - 8 y - 4$$
Divide both parts of the equation by 9
We get the answer: x = -4/9 - 8*y/9
9*x+8*y = -4
Looking for similar summands in the left part:
8*y + 9*x = -4
Move the summands with the other variables
from left part to right part, we given:
$$9 x = - 8 y - 4$$
Divide both parts of the equation by 9
x = -4 - 8*y / (9)
We get the answer: x = -4/9 - 8*y/9
Rapid solution
[src]
4 8*re(y) 8*I*im(y)
x1 = - - - ------- - ---------
9 9 9
$$x_{1} = - \frac{8 \operatorname{re}{\left(y\right)}}{9} - \frac{8 i \operatorname{im}{\left(y\right)}}{9} - \frac{4}{9}$$
x1 = -8*re(y)/9 - 8*i*im(y)/9 - 4/9