Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation cos(x)-1=0
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Equation x+5=7
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Equation 16*x^3+8*x^2+x=0
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Equation 3/5*y=29/10-1/5
- Express {x} in terms of y where:
- 19*x+2*y=17
- 8*x-9*y=-1
- 13*x-1*y=-20
- 9*x+8*y=-4
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Identical expressions
- (x+ nine)/ seven -x/ two = two
- (x plus 9) divide by 7 minus x divide by 2 equally 2
- (x plus nine) divide by seven minus x divide by two equally two
- x+9/7-x/2=2
- (x+9) divide by 7-x divide by 2=2
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Similar expressions
- (x-9)/7-x/2=2
- x+9/7-x/2=2
- (x+9)/7+x/2=2
(x+9)/7-x/2=2 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:
$$- \frac{5 x}{14} = \frac{5}{7}$$
Divide both parts of the equation by -5/14
We get the answer: x = -2
(x+9)/7-x/2 = 2
Expand brackets in the left part
x/7+9/7-x/2 = 2
Looking for similar summands in the left part:
9/7 - 5*x/14 = 2
Move free summands (without x)
from left part to right part, we given:
$$- \frac{5 x}{14} = \frac{5}{7}$$
Divide both parts of the equation by -5/14
x = 5/7 / (-5/14)
We get the answer: x = -2
The graph