Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -4*x+7*y=-16
- -1*x-20*y=1
- 14*x-10*y=-4
- -11*x+16*y=3
- Equation:
- Equation ax=b
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Equation x^2-x+8=0
- Equation x^2+y^2=1
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Equation x^2-8x+16=0
- 4*x+7*y
- Sum of series:
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-16
- Limit of the function:
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-16
-
Identical expressions
- four *x+ seven *y=- sixteen
- 4 multiply by x plus 7 multiply by y equally minus 16
- four multiply by x plus seven multiply by y equally minus sixteen
- 4x+7y=-16
-
Similar expressions
- 4*x-7*y=-16
- 4*x+7*y=+16
Express x in terms of y where 4*x+7*y=-16
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:
$$4 x = - 7 y - 16$$
Divide both parts of the equation by 4
We get the answer: x = -4 - 7*y/4
4*x+7*y = -16
Looking for similar summands in the left part:
4*x + 7*y = -16
Move the summands with the other variables
from left part to right part, we given:
$$4 x = - 7 y - 16$$
Divide both parts of the equation by 4
x = -16 - 7*y / (4)
We get the answer: x = -4 - 7*y/4
Rapid solution
[src]
7*re(y) 7*I*im(y)
x1 = -4 - ------- - ---------
4 4
$$x_{1} = - \frac{7 \operatorname{re}{\left(y\right)}}{4} - \frac{7 i \operatorname{im}{\left(y\right)}}{4} - 4$$
x1 = -7*re(y)/4 - 7*i*im(y)/4 - 4