Mister Exam
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How to use it?
- Equation:
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Equation (x-4)^2-x^2=0
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Equation x*(x^2+8*x+16)=5*(x+4)
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Equation ((57.6/(150-x))^0.15)*((150+x)+10)/171.712=1
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Equation 13/(x-4)=2
- Express {x} in terms of y where:
- -6*x+12*y=11
- 20*x+18*y=-9
- -20*x-6*y=4
- 6*x+9*y=-9
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Identical expressions
- (x+ four)*(y- seven)= zero
- (x plus 4) multiply by (y minus 7) equally 0
- (x plus four) multiply by (y minus seven) equally zero
- (x+4)(y-7)=0
- x+4y-7=0
- (x+4)*(y-7)=O
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Similar expressions
- (x-4)*(y-7)=0
- (x+4)*(y+7)=0
(x+4)*(y-7)=0 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation:
Expand expressions:
Reducing, you get:
Move free summands (without x)
from left part to right part, we given:
Move the summands with the other variables
from left part to right part, we given:
Divide both parts of the equation by (-7*x + x*y)/x
We get the answer: x = -4
(x+4)*(y-7) = 0
Expand expressions:
-28 - 7*x + 4*y + x*y = 0
Reducing, you get:
-28 - 7*x + 4*y + x*y = 0
Move free summands (without x)
from left part to right part, we given:
Move the summands with the other variables
from left part to right part, we given:
Divide both parts of the equation by (-7*x + x*y)/x
x = 28 - 4*y / ((-7*x + x*y)/x)
We get the answer: x = -4
The graph