Mister Exam
Other calculators
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How to use it?
- Equation:
-
Equation sin(x)=1/5
-
Equation x^2+11=0
-
Equation x^2+5x+6=0
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Equation -x/7+x=15/7
- Express {x} in terms of y where:
- 9*x+17*y=13
- 20*x+18*y=-9
- -4*x-8*y=-20
- -1*x+4*y=-10
- Integral of d{x}:
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4*x
- Derivative of:
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4*x
- 4*x
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Identical expressions
- five - two *(x- one)= four *x
- 5 minus 2 multiply by (x minus 1) equally 4 multiply by x
- five minus two multiply by (x minus one) equally four multiply by x
- 5-2(x-1)=4x
- 5-2x-1=4x
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Similar expressions
- 12-4(x-3)=39-9x
- (5-2(x-1))=4-x
- 3x+5=-4x+19
- 5-2*(x+1)=4*x
- 5+2*(x-1)=4*x
- 3x^2+4x=0
- x^4=(4x-5)^2
- 15^8x-9=(1/15)^-2x-1
- (sqrt(5)+2)^(x-1)=(sqrt(5)-2)^((x-1)/(x+1))
5-2*(x-1)=4*x 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:
$$- 2 x = 4 x - 7$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-6\right) x = -7$$
Divide both parts of the equation by -6
We get the answer: x = 7/6
5-2*(x-1) = 4*x
Expand brackets in the left part
5-2*x+2*1 = 4*x
Looking for similar summands in the left part:
7 - 2*x = 4*x
Move free summands (without x)
from left part to right part, we given:
$$- 2 x = 4 x - 7$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-6\right) x = -7$$
Divide both parts of the equation by -6
x = -7 / (-6)
We get the answer: x = 7/6
Sum and product of roots
[src]
sum
7/6
$$\frac{7}{6}$$
=
7/6
$$\frac{7}{6}$$
product
7/6
$$\frac{7}{6}$$
=
7/6
$$\frac{7}{6}$$
7/6