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vladimir1956 [14]

4 years ago

9

. . What property is shown? . . . . –12 + (27 + 12) = –12 + (12 + 27).

1 answer:

sergiy2304 [10]4 years ago

3 0

<span>The property that is shown in the expression given in the question is commutative property. The word commutative has basically been taken from the word "commute". This means moving around and in case of this problem, it means moving around for doing the addition and getting to the right answer. I hope it helps you.</span>

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dexar [7]

The answer is :
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Solve x in the diagram below

zzz [600]

A straight line is 180°, so you add these two angles together because they make a straight line:

3x° + 75° = 180°

To find "x", isolate/get the variable "x" by itself in the equation. Subtract 75° on both sides

3x° + 75° - 75° = 180° - 75°

3x° = 105° Divide 3 on both sides to get "x" by itself

x = 35°

PROOF

3x° + 75° = 180° Substitute/plug in 35 into "x" since x = 35°

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mote1985 [20]

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Step-by-step explanation:

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REY [17]

Answer:

x = 4

Step-by-step explanation:

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3 years ago