Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 4-2(3+4x)=18
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Equation 4x-2=2x+6
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Equation 0,4(x-3)-1,6=5(0,1x-0,5)
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Equation (x+2)*4+28=(x-2)*2
- Express {x} in terms of y where:
- 19*x+11*y=6
- -15*x-3*y=7
- -11*x-6*y=1
- -13*x-5*y=6
- Sum of series:
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18
- Derivative of:
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18
- The double integral of:
- 18
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Identical expressions
- four - two (three +4x)= eighteen
- 4 minus 2(3 plus 4x) equally 18
- four minus two (three plus 4x) equally eighteen
- 4-23+4x=18
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Similar expressions
- 4-2(3-4x)=18
- 4+2(3+4x)=18
4-2(3+4x)=18 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:
$$- 8 x = 20$$
Divide both parts of the equation by -8
We get the answer: x = -5/2
4-2*(3+4*x) = 18
Expand brackets in the left part
4-2*3-2*4*x = 18
Looking for similar summands in the left part:
-2 - 8*x = 18
Move free summands (without x)
from left part to right part, we given:
$$- 8 x = 20$$
Divide both parts of the equation by -8
x = 20 / (-8)
We get the answer: x = -5/2
Sum and product of roots
[src]
sum
-5/2
$$- \frac{5}{2}$$
=
-5/2
$$- \frac{5}{2}$$
product
-5/2
$$- \frac{5}{2}$$
=
-5/2
$$- \frac{5}{2}$$
-5/2
The graph