Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 3x+3=-2-7x
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Equation x^2+11*x+30=0
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Equation x^6=-64
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Equation 9*x^2-1=0
- Express {x} in terms of y where:
- 12*x+6*y=-5
- -19*x+1*y=-6
- 2*x+4*y=-1
- 1*x-17*y=-10
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Identical expressions
- seven *(x+ thirteen)= zero .
- 7 multiply by (x plus 13) equally 0.
- seven multiply by (x plus thirteen) equally zero .
- 7(x+13)=0.
- 7x+13=0.
- 7*(x+13)=O.
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Similar expressions
- 7*(x-13)=0.
- (x^2-7x+13)^2=x^2-7x+13
- 7*x+132/(x-1)=-57
- -15x-22=7x+132
- −15x−17=7x+137
7*(x+13)=0. 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:
$$7 x = -91$$
Divide both parts of the equation by 7
We get the answer: x = -13
7*(x+13) = 0
Expand brackets in the left part
7*x+7*13 = 0
Move free summands (without x)
from left part to right part, we given:
$$7 x = -91$$
Divide both parts of the equation by 7
x = -91 / (7)
We get the answer: x = -13