Mister Exam
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How to use it?
- Equation:
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Equation 15-x=8
-
Equation x^2+3*x+9=0
-
Equation x^2-16*x+64=0
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Equation x^2-6x-7=0
- Express {x} in terms of y where:
- 9*x-8*y=-6
- -11*x+1*y=-14
- -13*x-14*y=0
- 7*x-17*y=2
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Identical expressions
- - zero . nine x- zero .3x+9. six = zero
- minus 0.9x minus 0.3x plus 9.6 equally 0
- minus zero . nine x minus zero .3x plus 9. six equally zero
- -0.9x-0.3x+9.6=O
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Similar expressions
- 0.9x-0.3x+9.6=0
- -0.9x-0.3x-9.6=0
- -0.9x+0.3x+9.6=0
-0.9x-0.3x+9.6=0 equation
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The solution
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9*x 3*x 48 - --- - --- + -- = 0 10 10 5
$$- \frac{9 x}{10} - \frac{3 x}{10} + \frac{48}{5} = 0$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- \frac{6 x}{5} = - \frac{48}{5}$$
Divide both parts of the equation by -6/5
We get the answer: x = 8
-(9/10)*x-(3/10)*x+(48/5) = 0
Expand brackets in the left part
-9/10x-3/10x+48/5 = 0
Looking for similar summands in the left part:
48/5 - 6*x/5 = 0
Move free summands (without x)
from left part to right part, we given:
$$- \frac{6 x}{5} = - \frac{48}{5}$$
Divide both parts of the equation by -6/5
x = -48/5 / (-6/5)
We get the answer: x = 8
The graph