Please help me my first post
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- 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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