Sagot :
[tex]2g+7=-4g+7+6g \\\\\\ 2g+7=2g+7 \to True \ statement \\\\\\ 2g-2g=7-7 \\\\ \boxed{0=0}[/tex]
You can move all the terms with g in left, and the free terms in right.
2g+7=-4g+7+6g
2g+4g-6g=7-7
0=0 => It's true.
2g+7=-4g+7+6g
2g+4g-6g=7-7
0=0 => It's true.