Step-by-step explanation:
[tex]\tt{ 11g-(-g)=12}[/tex] ⠀
[tex]\boxed{-(-)=+ }[/tex] ⠀
[tex]\tt{ 11g+g=12 }[/tex] ⠀
[tex]\tt{12g=12 }[/tex] ⠀
[tex]\tt{ g=\dfrac{12}{12} }[/tex] ⠀
[tex]\tt{ g=1 }[/tex] ⠀
[tex]\boxed{\large{\bold{\blue{ANSWER~:) }}}}[/tex]