Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -16*x-19*y=-4
- -1*x+1*y=18
- -12*x+10*y=19
- -20*x-20*y=-9
- Equation:
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Equation cos(x)-1=0
-
Equation -2*x-7=-4*x
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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
- Sum of series:
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-1
- Derivative of:
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-1
- Integral of d{x}:
-
-1
-
Identical expressions
- - seven *x+ nine *y=- one
- minus 7 multiply by x plus 9 multiply by y equally minus 1
- minus seven multiply by x plus nine multiply by y equally minus one
- -7x+9y=-1
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Similar expressions
- -7*x-9*y=-1
- 7*x+9*y=-1
- -7*x+9*y=+1
Express x in terms of y where -7*x+9*y=-1
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:
$$- 7 x = - 9 y - 1$$
Divide both parts of the equation by -7
We get the answer: x = 1/7 + 9*y/7
-7*x+9*y = -1
Looking for similar summands in the left part:
-7*x + 9*y = -1
Move the summands with the other variables
from left part to right part, we given:
$$- 7 x = - 9 y - 1$$
Divide both parts of the equation by -7
x = -1 - 9*y / (-7)
We get the answer: x = 1/7 + 9*y/7
Rapid solution
[src]
1 9*re(y) 9*I*im(y)
x1 = - + ------- + ---------
7 7 7
$$x_{1} = \frac{9 \operatorname{re}{\left(y\right)}}{7} + \frac{9 i \operatorname{im}{\left(y\right)}}{7} + \frac{1}{7}$$
x1 = 9*re(y)/7 + 9*i*im(y)/7 + 1/7