Given the equation below what is the value of a+b?
1/2(a+3)-b=-6
3a-2b=-5

15

Step-by-step explanation:

1. 1/2(a+3)-b=-6  ⇒ a+3-2b= -12 ⇒ a-2b= -15

2. 3a-2b= -5

subtract the equations  to eliminate 2b:

then

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side angle side

step-by-step explanation:

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step-by-step explanation: