Simplify the expression (3 + 6x) - 2 (x + 1 ) + 5.

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project

Guys can y’all me because i don’t understand to the questions of my cousin she tell me to do the homework plz me guys

X+ 4y − z = −14 5x + 6y + 3z = 4 −2x + 7y + 2z = −17