algebra basics grade 7 part 2

A sequence has the formula 3n-4. What is the value of the 28th term?

find the formula for the sequence: -1,-4, -7, -10, .......

A sequence has the formula 7n-9. What is the term number with value 117?

solve for u: 7u+12=40

calculate 4(-p-3q)

substitute a=-3, b=4 : 2a²-6b

Substitute p=-1, q=-4 in p²-7p

solve for x: 8x-5=37

calculate: -3(5a-2b)

simplify: -6x-9y-13+17x+19+5y