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LenKa [72]
3 years ago
13

Solve for a: 2.2a + 3.4 b = 1.2a + 2.6 What is the value of a when b = 2? b = 1.5?

Mathematics
1 answer:
LenKa [72]3 years ago
8 0

Answer:

when b=2 , a = -4.2

when b=1.5 , b=-2.5

Step-by-step explanation:

When b = 1.5

2.2a + 3.4b = 1.2a + 2.6 \\ a =  \\ b =  1.5 \\ 2.2a + 3.4(1.5) = 1.2a + 2.6 \\ 2.2a + 5.1 = 1.2a + 2.6

2.2a - 1.2a = 2.6 - 5.1 \\ a =  - 2.5

When b = 2

2.2a + 3.4(2) = 1.2a + 2.6 \\ 2.2a + 6.8 = 1.2a + 2.6

Collect like terms and simplify

2.2a - 1.2a = 2.6 - 6.8 \\ a =  - 4.2

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