Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 13/(x+6)=2
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Equation (2-c)+3*(c-3)=-13
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Equation -1+2*x=10*x+3
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Equation -x=17
- Express {x} in terms of y where:
- 14*x+5*y=11
- 8*x-7*y=-1
- 20*x-5*y=-7
- -1*x+1*y=18
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Identical expressions
- five , six -(3x+ eleven)= four ×(x+ zero , four)
- 5,6 minus (3x plus 11) equally 4×(x plus 0,4)
- five , six minus (3x plus eleven) equally four ×(x plus zero , four)
- 5,6-3x+11=4×x+0,4
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Similar expressions
- 5,6-(3x-11)=4×(x+0,4)
- 5,6+(3x+11)=4×(x+0,4)
- 5,6-(3x+11)=4×(x-0,4)
5,6-(3x+11)=4×(x+0,4) equation
The teacher will be very surprised to see your correct solution 😉
The solution
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28/5 + -3*x - 11 = 4*(x + 2/5)
$$\left(- 3 x - 11\right) + \frac{28}{5} = 4 \left(x + \frac{2}{5}\right)$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Expand brackets in the right part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 3 x = 4 x + 7$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-7\right) x = 7$$
Divide both parts of the equation by -7
We get the answer: x = -1
(28/5)-(3*x+11) = 4*(x+(2/5))
Expand brackets in the left part
28/5-3*x-11 = 4*(x+(2/5))
Expand brackets in the right part
28/5-3*x-11 = 4*x+4*2/5)
Looking for similar summands in the left part:
-27/5 - 3*x = 4*x+4*2/5)
Move free summands (without x)
from left part to right part, we given:
$$- 3 x = 4 x + 7$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-7\right) x = 7$$
Divide both parts of the equation by -7
x = 7 / (-7)
We get the answer: x = -1