Please post the equation
If I understand it correctly, that means you should solve the following equation: (5 + 9 + 12 + x) / 4 = 9
248
beta particle
Beta -apex- :D
a variable
99 43 tc + 99 44 ru
The question cannot be answered since there is no equation there!
If I understand it correctly, that means you should solve the following equation: (5 + 9 + 12 + x) / 4 = 9
248
KOH(aq) + NaCl(aq)
beta particle
Beta -apex- :D
a variable
This is a set of three numbers. It is NOT an equation. There is nothing missing from a non-existent equation.
The question is not a solvable equation. It could be any number.
CH4+O2 --- CO2+H2O... All that's missing - is the number 2 before the water molecule... CH4+O2 --- CO2+2H2O
x = missing number x/10 = 15 operate on the equation, doing the same operation to both sides, to isolate x (namely, multiply both sides by 10)