Question 344182
To solve an equation for a variable, means to isolate the variable on one side of the equation.


13(g + 2) = 78


Whenever you see a parentheses in any math question, remove it as your first step using the distributive rule.


13 times g = 13g



13 times 2 = 26



The equation now looks this way:



13g + 26 = 78



We now subtract 26 from 78.


13g = 78 - 26



13g = 52



Lastly, we divide 52 by 13 to find g.


g = 52/13


g = 4



The answer is g = 4.


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