Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2x^2-8=0
-
Equation 8x-15=-12+5x
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Equation 5*(x+9)=-8
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Equation 7(x-1)=3x
- Express {x} in terms of y where:
- 10*x+13*y=-16
- -2*x-7*y=3
- -15*x-15*y=12
- 10*x-13*y=16
- Integral of d{x}:
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3x
- Graphing y =:
- 3x
- Derivative of:
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3x
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Identical expressions
- seven (x- one)=3x
- 7(x minus 1) equally 3x
- seven (x minus one) equally 3x
- 7x-1=3x
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Similar expressions
- x*2+7x-18=0
- 2=17x-1/17x-2
- 7*x^2+3*x=0
- (1/x^2)-1=27x-1
- 7(x+1)=3x
- 3(x+1)(x+2)=2x^2+4x
- 3x²+67x-1=0
7(x-1)=3x 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
Move free summands (without x)
from left part to right part, we given:
$$7 x = 3 x + 7$$
Move the summands with the unknown x
from the right part to the left part:
$$4 x = 7$$
Divide both parts of the equation by 4
We get the answer: x = 7/4
7*(x-1) = 3*x
Expand brackets in the left part
7*x-7*1 = 3*x
Move free summands (without x)
from left part to right part, we given:
$$7 x = 3 x + 7$$
Move the summands with the unknown x
from the right part to the left part:
$$4 x = 7$$
Divide both parts of the equation by 4
x = 7 / (4)
We get the answer: x = 7/4
Sum and product of roots
[src]
sum
7/4
$$\frac{7}{4}$$
=
7/4
$$\frac{7}{4}$$
product
7/4
$$\frac{7}{4}$$
=
7/4
$$\frac{7}{4}$$
7/4
The graph