1 answer:
Answer:
v=18, b=59. (18, 59).
Step-by-step explanation:
v+6b=372
4v+12b=780
-----------------
simplify 4v+12b=780 into v+3b=195,
v+6b=372
v+3b=195
---------------
-(v+6b)=-372
v+3b=195
---------------------
-v-6b=-372
v+3b=195
----------------
-3b=-177
3b=177
b=177/3
b=59
v+6(59)=372
v+354=372
v=372-354
v=18
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