3 years ago

PLEASE HELP!a-b+c=3a+b+c=7Find b.A) 1B) 2C) 3D) 4E) 5

Mathematics

2 answers:

bija089 [108]3 years ago

3 0

Answer:

Step-by-step explanation:

I think the day of my birthday was a little more aware of my own life than the poem I think I c I

Gre4nikov [31]3 years ago

3 0

Answer:

Step-by-step explanation:

Given the 2 equations

a - b + c = 3 → (1)

a + b + c = 7 → (2)

Subtract (1) from (2) term by term to eliminate a and c

a - a + b - (- b) + c - c = 7 - 3 , that is

0 + b + b + 0 = 4

2b = 4 ( divide both sides by 2 )

b = 2 → B

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PLEASE HELP!a-b+c=3a+b+c=7Find b.A) 1B) 2C) 3D) 4E) 5​

PLEASE HELP!a-b+c=3a+b+c=7Find b.A) 1B) 2C) 3D) 4E) 5