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
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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
- 4*x+3*y
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Identical expressions
- four *x+ three *y= seven
- 4 multiply by x plus 3 multiply by y equally 7
- four multiply by x plus three multiply by y equally seven
- 4x+3y=7
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Similar expressions
- 4*x-3*y=7
Express x in terms of y where 4*x+3*y=7
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:
$$4 x = 7 - 3 y$$
Divide both parts of the equation by 4
We get the answer: x = 7/4 - 3*y/4
4*x+3*y = 7
Looking for similar summands in the left part:
3*y + 4*x = 7
Move the summands with the other variables
from left part to right part, we given:
$$4 x = 7 - 3 y$$
Divide both parts of the equation by 4
x = 7 - 3*y / (4)
We get the answer: x = 7/4 - 3*y/4
Rapid solution
[src]
7 3*re(y) 3*I*im(y)
x1 = - - ------- - ---------
4 4 4
$$x_{1} = - \frac{3 \operatorname{re}{\left(y\right)}}{4} - \frac{3 i \operatorname{im}{\left(y\right)}}{4} + \frac{7}{4}$$
x1 = -3*re(y)/4 - 3*i*im(y)/4 + 7/4