nessa12347 nessa12347

25-10-2019
Mathematics

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Example 1.7
Simplify the following
a) - 6+10-(-2)
b) – 21-(-2)+6-18
c) 4-19-(-3) – 7

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JulianaReinhard5157 JulianaReinhard5157

25-10-2019

Answer:

a)6

b)-31

c)-19

Step-by-step explanation:

a)

-6+10=4

4+2*=6

b)

-21+2* = -19

-19+6=-13

-13-18= -31

c)

4-19= -15

-15+3*= -12

-12-7= -19

-(-) turns into +*

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