Answer:
g = 6
Explanation:
3.8g + 8 = 1.8g + 20
Subtract 1.8g from both sides;
2g + 8 = 20
Subtract 8 from both sides;
2g = 12
Divide both sides by 2;
g = 6
You can check if the value of g is correct by plugging in the value of g to the equation. If your check does not it doesn't mean your answer is not correct because sometimes it can be a no solution equation which means that there is no solution to the equation.
Check:
3.8(6) + 8 = 1.8(6) + 20
22.8 + 8 = 10.8 + 20
30.8 = 30.8
It means its correct