Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (7x+9)-(11x-7)=8
- Equation x^4-2*x^3-4*x^210*x+-5-2ax+6a=0
- Equation cosx+sinx=sqrt2*sin(2x)
- Equation (arctan(sqrt(2)tan(x)+1)+arctan(sqrt(2)tan(x)-1))/sqrt(2)-1/(sqrt(2))arctan(tan(2x)/sqrt(2))=0
- Express {x} in terms of y where:
- 4*x+15*y=19
- -14*x-3*y=-5
- -8*x-12*y=15
- 9*x+8*y=6
- Sum of series:
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320
- Integral of d{x}:
- 320
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Identical expressions
- (x+ one hundred and twenty)× two = three hundred and twenty
- (x plus 120)×2 equally 320
- (x plus one hundred and twenty)× two equally three hundred and twenty
- x+120×2=320
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Similar expressions
- log13(4,42)=log13(x)-log13(20)
- 4x-3(20-x)=10x-3(11+x)
- (x-120)×2=320
(x+120)×2=320 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
Move free summands (without x)
from left part to right part, we given:
$$2 x = 80$$
Divide both parts of the equation by 2
We get the answer: x = 40
(x+120)*2 = 320
Expand brackets in the left part
x*2+120*2 = 320
Move free summands (without x)
from left part to right part, we given:
$$2 x = 80$$
Divide both parts of the equation by 2
x = 80 / (2)
We get the answer: x = 40