No they do not, equations have equal signs.
10x10
1 + 11 = 12
90
As an example: 9x = 63 then x = 63/9 and so x = 7
They are the same except equations use the equal sign =
No they do not, equations have equal signs.
2.7 liters if my math is correct.
averigualo... idiota
Equivalent meaning the equations are of equal value
10x10
1 + 11 = 12
4500
IF they are math related, write appropriate equations and then apply math rules to solve the equations.
90
Equations mean a problem mostly in math
As an example: 9x = 63 then x = 63/9 and so x = 7