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
- 20x+ seven =17x- eight
- 20x plus 7 equally 17x minus 8
- 20x plus seven equally 17x minus eight
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Similar expressions
- 20x+7=17x+8
- 1*x^2-20*x+7500=0
- 20x-7=17x-8
- x=(x-75)*2+20*x+75
- 1,5*x^2+20*x+71=0
- 1*x^2-17*x-80=0
- 0,28=0.001+17*x^-8,11
20x+7=17x-8 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$20 x = 17 x - 15$$
Move the summands with the unknown x
from the right part to the left part:
$$3 x = -15$$
Divide both parts of the equation by 3
We get the answer: x = -5
20*x+7 = 17*x-8
Move free summands (without x)
from left part to right part, we given:
$$20 x = 17 x - 15$$
Move the summands with the unknown x
from the right part to the left part:
$$3 x = -15$$
Divide both parts of the equation by 3
x = -15 / (3)
We get the answer: x = -5