2x+7+4x-1= 180 como se despeja esa ecuacion ayuda por favor​

Is each relation a function? if so, state whether it is one-to-one or many-to-one. 3. (-4,7), (-3,5), (1,4), (3,-8), (5,-11) 4. (-4,8), (-2,4), (0,1), (2,4), (4,8) 5. (-2, 1), (-2,3), (0,-3), (1,4), (3,1)

One of the problems with our current election system is? ?

Write an equation with the solution x=20. the equation should have the variable on both sides, a fractional coefficient on the left side, and a fraction anywhere on the right side. show work