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3 years ago

Solve for X X=..........................

Mathematics

2 answers:

SOVA2 [1]3 years ago

8 0

Answer:

(3x -5)°+ (2x- 15)°=180°[sum of co- Interrior angles of a triangle is 180°]

or, 3x- 5 + 2x - 15=180°

or,5x - 20 = 180°

or, 5x = 180°+20

or, x = 200÷ 5

•°•x = 40°

Stolb23 [73]3 years ago

4 0

Answer:

X = 40

Step-by-step explanation:

3x + 2x -5 -15 = 180

5x + -20 = 180

then u add 20 on both sides

5x + 0 = 200

ya the 0 is not necessary but I was showing u add 20 on both sides lol

then u divide 5 on both sides to get the x by itself

x = 40

Hope this helps dude ^-^

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pav-90 [236]

The equality used is Subtraction property of equality

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Step-by-step explanation:

We need to identify which option best explains or justifies Step 1.

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Option A is correct.

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3 years ago

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Aliun [14]

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3 years ago

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Lerok [7]

Answer:

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Step-by-step explanation:

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