Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 5-x=4(x-3)
-
Equation 7x-(3+2x)=x+9
- Equation (x^2-16)^2+(x^2-3*x-28)^2=0
-
Equation (1/6)^(x+8)=6^x
- Express {x} in terms of y where:
- 11*x-10*y=-19
- -4*x+1*y=-6
- 8*x+7*y=11
- 17*x-2*y=7
- Integral of d{x}:
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4x-7
-
2x
- Graphing y =:
- 4x-7
- 2x
- Derivative of:
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4x-7
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2x
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Identical expressions
- 4x- seven =2x
- 4x minus 7 equally 2x
- 4x minus seven equally 2x
-
Similar expressions
- (x-2)(x-4)(x-7)-(x+2)(x+4)(x+7)=0
- 141*10^(-6)*x*3*sqrt(2)=sqrt((1-19881*10^(-12)*x^2)^2+9)
- 12^x+5^x=13^x
- 4x+7=2x
4x-7=2x equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$4 x = 2 x + 7$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = 7$$
Divide both parts of the equation by 2
We get the answer: x = 7/2
4*x-7 = 2*x
Move free summands (without x)
from left part to right part, we given:
$$4 x = 2 x + 7$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = 7$$
Divide both parts of the equation by 2
x = 7 / (2)
We get the answer: x = 7/2
Sum and product of roots
[src]
sum
7/2
$$\frac{7}{2}$$
=
7/2
$$\frac{7}{2}$$
product
7/2
$$\frac{7}{2}$$
=
7/2
$$\frac{7}{2}$$
7/2
The graph