Final answer:
To find the value of g that makes the equation true, we can solve the equation by eliminating the variable g on one side. After some simplification and division, the value of g is determined to be 5.
Step-by-step explanation:
To find the value of g that makes the equation true, we need to solve the equation.
18g + 6 = 15g + 21
To solve the equation, we need to eliminate the variable g on one side of the equation. We can do this by subtracting 15g from both sides of the equation to get:
18g - 15g + 6 = 15g - 15g + 21
Simplifying the equation gives us:
3g + 6 = 21
Next, we subtract 6 from both sides of the equation:
3g + 6 - 6 = 21 - 6
Which simplifies to:
3g = 15
Finally, we divide both sides of the equation by 3 to solve for g:
3g/3 = 15/3
This gives us the value:
g = 5