Answer :
So here, you want to use the distributive property, by distributing, or multiplying, 2/3, by all variables in the parenthesis.
So basically,
2/3 * 6e + 2/3 * 9f - 2/3 * 21g
Or,
4e + 6f - 14g
So basically,
2/3 * 6e + 2/3 * 9f - 2/3 * 21g
Or,
4e + 6f - 14g