Mister Exam
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How to use it?
- Equation:
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Equation 4^x=8
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Equation x-5(x+3)=5
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Equation -x=2
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Equation x^2-8=0
- Express {x} in terms of y where:
- -7*x-13*y=-12
- 8*x+1*y=4
- 20*x-16*y=7
- -3*x+19*y=16
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Identical expressions
- x- five (x+ three)= five
- x minus 5(x plus 3) equally 5
- x minus five (x plus three) equally five
- x-5x+3=5
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Similar expressions
- x-5(x-3)=5
- (4x-5)(x+3)=(2x-5)(2x+5)
- (4*x-5)*(x+3)=(2*x-3)^2
- x+5(x+3)=5
- x^-5x+3=0
x-5(x+3)=5 equation
The teacher will be very surprised to see your correct solution 😉
The solution
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:
$$- 4 x = 20$$
Divide both parts of the equation by -4
We get the answer: x = -5
x-5*(x+3) = 5
Expand brackets in the left part
x-5*x-5*3 = 5
Looking for similar summands in the left part:
-15 - 4*x = 5
Move free summands (without x)
from left part to right part, we given:
$$- 4 x = 20$$
Divide both parts of the equation by -4
x = 20 / (-4)
We get the answer: x = -5
The graph