Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 25*x^3-10*x^2+x=0
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Equation 2x^2-x-1=x^2-5x-(-1-x^2)
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Equation 2^x=5
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Equation (x-10)^2=(x+4)^2
- Express {x} in terms of y where:
- 15*x+12*y=-19
- -19*x-20*y=-4
- -18*x+12*y=-8
- -14*x+4*y=-16
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Identical expressions
- four *x+ five *(x- one)= four
- 4 multiply by x plus 5 multiply by (x minus 1) equally 4
- four multiply by x plus five multiply by (x minus one) equally four
- 4x+5(x-1)=4
- 4x+5x-1=4
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Similar expressions
- 4*x-5*(x-1)=4
- 9-4x+5x-11=10
- 4*x+5*(x+1)=4
4*x+5*(x-1)=4 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:
$$9 x = 9$$
Divide both parts of the equation by 9
We get the answer: x = 1
4*x+5*(x-1) = 4
Expand brackets in the left part
4*x+5*x-5*1 = 4
Looking for similar summands in the left part:
-5 + 9*x = 4
Move free summands (without x)
from left part to right part, we given:
$$9 x = 9$$
Divide both parts of the equation by 9
x = 9 / (9)
We get the answer: x = 1