They are two terms of an expression but if you mean 5+y = 12 then y = 7
It is an algebraic expression which could refer to 5 plus y times 12. However, it is customary to write the numerical coefficient first so it should be 5 + 12y instead.
-5 plus 0 is -5. That is true whatever the value of y.
5X = Y12 ???? If so...., Y12 = 5X Y = 12th root(5X) ===============
The only difference between Y12 and T12 is the Kilos per meter. In a Y12 there is 0.888 Kilos and a T12 bar has 0.612 Kilos.
Japan domestic Nissan Y12 wingroad bolt pattern is 4 * 100mm
12mm
785okg/m3
If this is an equation you left out the equal sign. Do you mean y8=y12-4. If so add 4 to both sides. You have 4+y8=y12. Then substract y8 from both sides. You have 4=y4. Divide both sides by 4. You have y=1.
0.887 kg per m
It is a deformed round steel bar and has a diameter of 12mm.
Note that the reason there exists a technique called multiplication is so that we do not have to perform tedious and lengthy series of addition such as the one you have presented. So, you have given us 24 of the number 5 to add. 24 x 5 = 120. (Addition form) 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 120
Thirty
5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 + 5 = 55