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andrew-mc [135]
3 years ago
6

PLEASE HELP ASAP!: Solve for a and b 6a-b=-5 4a-3b = -8

Mathematics
1 answer:
klemol [59]3 years ago
7 0

Answer:

a = -1/2

b = 2

Step-by-step explanation:

Step 1: Rewrite 1st equation

-b = -5 - 6a

b = 5 + 6a

Step 2: Substitution

4a - 3(5 + 6a) = -8

Step 3: Solve

4a - 15 - 18a = -8

-14a - 15 = -8

-14a = 7

a = -1/2

Step 4: Plug in <em>a</em> to find <em>b</em>

6(-1/2) - b = -5

-3 - b = -5

-b = -2

b = 2

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