True or False: Are these expressions linear? If not, why? 1) 3x + 13
2) 8/x - 4x
3) 6x^4 + 3x -9
4) -7x - 5x^0 + 12

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

idk this answer sorry cant on this one.

step-by-step explanation:

22

step-by-step explanation: