U is between G and B. R is between G and U. if GR is 3x-2, RU is 5x+7 , UB is 12 and GB is 15x-11. x is

GR is

GB is

please help!

x is 4

GR is 10

GB is 49

Step-by-step explanation:

If U is between G and B, then GU + UB = GB 1

If R is between G and U, GR + RU = GU 2

Given

GR is 3x-2

RU is 5x+7

UB is 12

GB is 15x-11

Substitute2 into 1;

Frim 1;

GU + UB = GB

(GR+RU) + UB = GB

3x-2+5x+7+12 = 15x-11

8x+17 = 15x-11

8x-15x = -11-17

-7x = -28

x = 28/7

x = 4

Get GR:

GR = 3x-2

GR = 3(4)-2

GR = 12-2

GR = 10

Get GB:

GB = 15x-11

GB = 15(4)-11

GB = 60-11

GB = 49

80 the answer is 80

step-by-step explanation:

explanation:

step-by-step explanation: