Mister Exam
Other calculators
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How to use it?
- Equation:
-
Equation 13/(x-4)=2
-
Equation x/4+x=4
-
Equation x^2+11=0
- Equation x+y=5
- Express {x} in terms of y where:
- 6*x+17*y=-11
- -12*x-10*y=-16
- 15*x+10*y=-4
- 15*x+9*y=5
- 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
-
Similar expressions
- (5-2(x-1))=4-x
- 4x^2+7=7+24x
- 6x^3-24x=0
- 5-2*(x+1)=4*x
- (x-6)(4x-6)=0
- 5+2*(x-1)=4*x
- 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