Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 2*x+2*y=-6
- 7*x+20*y=-17
- 12*x+14*y=-15
- -11*x+10*y=-9
- Equation:
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Equation e^x=0
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Equation x^2=10
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Equation cos(x)=3
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Equation x^2-3x-4=0
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Identical expressions
- seven *x+ twenty *y=- seventeen
- 7 multiply by x plus 20 multiply by y equally minus 17
- seven multiply by x plus twenty multiply by y equally minus seventeen
- 7x+20y=-17
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Similar expressions
- 7*x+20*y=+17
- 7*x-20*y=-17
Express x in terms of y where 7*x+20*y=-17
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:
$$7 x = - 20 y - 17$$
Divide both parts of the equation by 7
We get the answer: x = -17/7 - 20*y/7
7*x+20*y = -17
Looking for similar summands in the left part:
7*x + 20*y = -17
Move the summands with the other variables
from left part to right part, we given:
$$7 x = - 20 y - 17$$
Divide both parts of the equation by 7
x = -17 - 20*y / (7)
We get the answer: x = -17/7 - 20*y/7
Rapid solution
[src]
17 20*re(y) 20*I*im(y)
x1 = - -- - -------- - ----------
7 7 7
$$x_{1} = - \frac{20 \operatorname{re}{\left(y\right)}}{7} - \frac{20 i \operatorname{im}{\left(y\right)}}{7} - \frac{17}{7}$$
x1 = -20*re(y)/7 - 20*i*im(y)/7 - 17/7