Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation x^2-x-7=0
-
Equation 141*10^(-6)*x*3*sqrt(2)=sqrt((1-19881*10^(-12)*x^2)^2+9)
-
Equation e^x=4
-
Equation x^3=x^2-7x+7
- Express {x} in terms of y where:
- -6*x-13*y=17
- -7*x+5*y=1
- -6*x-19*y=7
- -19*x-4*y=-19
-
Identical expressions
- 8x− five (x+ one)=−2x.
- 8x−5(x plus 1) equally −2x.
- 8x− five (x plus one) equally −2x.
- 8x−5x+1=−2x.
-
Similar expressions
- 8x−5(x-1)=−2x.
8x−5(x+1)=−2x. 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:
$$3 x = 5 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$5 x = 5$$
Divide both parts of the equation by 5
We get the answer: x = 1
8*x-5*(x+1) = -2*x
Expand brackets in the left part
8*x-5*x-5*1 = -2*x
Looking for similar summands in the left part:
-5 + 3*x = -2*x
Move free summands (without x)
from left part to right part, we given:
$$3 x = 5 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$5 x = 5$$
Divide both parts of the equation by 5
x = 5 / (5)
We get the answer: x = 1
The graph