Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -2*x-7*y=19
- -7*x-11*y=4
- -17*x-7*y=16
- -10*x+1*y=-11
- Equation:
-
Equation cos(x)-1=0
-
Equation (5*x+4)/2+3=9*x/4
-
Equation 7*x^3-28*x=0
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Equation 4x+9=5(2x-7)-6x
- 2*x+7*y
- Sum of series:
-
19
- Integral of d{x}:
- 19
- Limit of the function:
- 19
-
Identical expressions
- two *x+ seven *y= nineteen
- 2 multiply by x plus 7 multiply by y equally 19
- two multiply by x plus seven multiply by y equally nineteen
- 2x+7y=19
-
Similar expressions
- 2*x-7*y=19
Express x in terms of y where 2*x+7*y=19
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:
$$2 x = 19 - 7 y$$
Divide both parts of the equation by 2
We get the answer: x = 19/2 - 7*y/2
2*x+7*y = 19
Looking for similar summands in the left part:
2*x + 7*y = 19
Move the summands with the other variables
from left part to right part, we given:
$$2 x = 19 - 7 y$$
Divide both parts of the equation by 2
x = 19 - 7*y / (2)
We get the answer: x = 19/2 - 7*y/2
Rapid solution
[src]
19 7*re(y) 7*I*im(y)
x1 = -- - ------- - ---------
2 2 2
$$x_{1} = - \frac{7 \operatorname{re}{\left(y\right)}}{2} - \frac{7 i \operatorname{im}{\left(y\right)}}{2} + \frac{19}{2}$$
x1 = -7*re(y)/2 - 7*i*im(y)/2 + 19/2