Math, asked by saraewnete46, 14 days ago

Please help me my first post​

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Answered by preeti353615
0

Answer:

  • a + b = -2, a-b = 6
  • a + b = -18, a - b = -2
  • a+ b = -12, a - b = 12
  • a+ b = 14, a-b = 4
  • b = 16, a-b =8
  •  b = 1, a - b= 1.8

Step-by-step explanation:

1) a = 2 b = -4

So, a + b = 2 + (-4) = 2 - 4 = -2

a - b = 2 - (-4) = 2 + 4 = 6

2) a = -10, b = -8

a + b = -10 + (-8) = -10-8 = -18

a - b = -10 - (-8) = -10+8 = -2

3) a = 0 , b = -12

a + b = 0 + (-12) = -12

a - b = 0 - (-12) = 12

4) a = 14 , b = 10

a + b = 14 + 10 = 24

a - b = 14 -10  = 4

5) a = 28  a+ b = 40

a + b = 40

24 + b = 40

b = 40 - 24

b = 16

a - b = 24 - 16 = 8

6)a = 2.8, a + b = 3.8

a + b = 3.8

2.8 + b = 3.8

b = 3.8 - 2,8

b = 1.0

a - b = 2.8.- 1.0 = 1.8

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