Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x/4+13=x+1
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Equation 4(x-8)=-5
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Equation 3x-2=0
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Equation x*8=25+15
- Express {x} in terms of y where:
- 4*x+8*y=7
- -14*x+5*y=3
- 13*x-18*y=-17
- 4*x+18*y=-7
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Identical expressions
- nine (x- one)=x+ fifteen
- 9(x minus 1) equally x plus 15
- nine (x minus one) equally x plus fifteen
- 9x-1=x+15
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Similar expressions
- 9x-16=2
- (7/19x-1/6)*3/16=3/16
- (2/(3*(x-1)^(4/3)))-((4*(2x-2))/(9*(x-1)^(7/3)))-(2/(3*(x-2)^(4/3)))+((4*(2x-4))/(9*(x-2)^(7/3)))=0
- 9(x-1)=x-15
- 9(x+1)=x+15
- 0=(709/20)-((512/5)*((x-100)/40))-(69*((y-(159/100))/(57/100)))-((452/5)*((z-70)/30))-((112/5)*((x-100)/40)*((y-(159/100))/(57/100)))+(25*((x-100)/40)*((z-70)/30))-(47*((y-(159/100))/(57/100))*((z-70)/30))+(9*((x-100)/40)*((y-(159/100))/(57/100))*((z-70)/30))
9(x-1)=x+15 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:
$$9 x = x + 24$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = 24$$
Divide both parts of the equation by 8
We get the answer: x = 3
9*(x-1) = x+15
Expand brackets in the left part
9*x-9*1 = x+15
Move free summands (without x)
from left part to right part, we given:
$$9 x = x + 24$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = 24$$
Divide both parts of the equation by 8
x = 24 / (8)
We get the answer: x = 3
The graph