Question

HELP PLEASE URGENT!!!!

Answer 1

Equations:
g + b + 0 = 1500
g + 0 + r = 750
g + b + r = 2000
============
g = 250
b = 1250
r = 500
============
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Answer 2

(1)   G + B = 1500
(2)  G + R = 750
(3)  G + B + R = 2000

Rearrange (1) to get B = 1500-G
Replace B in (3) to get G + (1500 - G) + R = 2000
Simplify to get R + 1500 = 2000, therefore R = 500
Insert R-value into (2) to get G = 250
Insert G-value into (1) to get B = 1250