Mister Exam
Other calculators
-
How to use it?
- Equation:
- Equation x^3-64*x=0
-
Equation 3x^2=2x+x^3
-
Equation 11324*x%=211
-
Equation -9а+8=-10а-2
- Express {x} in terms of y where:
- 17*x-1*y=-6
- 13*x-2*y=0
- -19*x+12*y=15
- 13*x-13*y=19
-
Identical expressions
- x+x+ forty = eighty-four
- x plus x plus 40 equally 84
- x plus x plus forty equally eighty minus four
-
Similar expressions
- x+x-40=84
- 8x+(x+40)*15=1290
- cot(pi/4)*2^-x=8*4^sqrt(4)
- x-x+40=84
- 2x+(x+40)=120
- (20+0.28)*(4+0.28)/((18+0.28)*(2-0.28))=X
x+x+40=84 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$2 x = 44$$
Divide both parts of the equation by 2
We get the answer: x = 22
x+x+40 = 84
Looking for similar summands in the left part:
40 + 2*x = 84
Move free summands (without x)
from left part to right part, we given:
$$2 x = 44$$
Divide both parts of the equation by 2
x = 44 / (2)
We get the answer: x = 22