Question

Solve for y if x - 4y = 70 and if x = y + 1

Answer 1

Substitute x = y + 1 into x - 4y = 70, which gives you y + 1 - 4y = 70.

Then, simplify to get 1 - 3y = 70.

Move the 1 over to get -3y = 69, and divide both sides by -3 to get y = -23.

Substitute y = -23 into x = y + 1 to get x = -22.

Hope it helped!