Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2-7*x+10=0
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Equation 5x^2-8x+3=0
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Equation 3/5*y=29/10-1/5
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Equation -12x+11=-(2-x)
- Express {x} in terms of y where:
- 12*x-20*y=9
- -3*x-10*y=1
- -11*x+16*y=3
- 11*x-6*y=5
- Sum of series:
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59
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Identical expressions
- ninety-nine -(7x- nine)= fifty-nine
- 99 minus (7x minus 9) equally 59
- ninety minus nine minus (7x minus nine) equally fifty minus nine
- 99-7x-9=59
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Similar expressions
- 5^(9-x)=64
- 99+(7x-9)=59
- 99-(7x+9)=59
99-(7x-9)=59 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:
$$- 7 x = -49$$
Divide both parts of the equation by -7
We get the answer: x = 7
99-(7*x-9) = 59
Expand brackets in the left part
99-7*x+9 = 59
Looking for similar summands in the left part:
108 - 7*x = 59
Move free summands (without x)
from left part to right part, we given:
$$- 7 x = -49$$
Divide both parts of the equation by -7
x = -49 / (-7)
We get the answer: x = 7