How do i solve 3x+3y=-3 and y=5x-1 each system by substitution?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?