Nicky156
Nicky156 Nicky156
  • 26-11-2018
  • Mathematics
contestada

HELP PLEASE!


What is the value of x?


Enter your answer in the box.

x = ___

HELP PLEASE What is the value of x Enter your answer in the box x class=

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jimrgrant1 jimrgrant1
  • 26-11-2018

Answer:

x = 25

Step-by-step explanation:

This is an equilateral triangle as all 3 angles are marked as equal.

Hence the 3 sides are equal

Equate any 2 and solve for x

4x - 30 = 3x - 5 ( subtract 3x from both sides )

x - 30 = - 5 ( add 30 to both sides )

x = 25

As a check on the sides

4x - 30 = (4 × 25) - 30 = 100 - 30 = 70

3x - 5 = (3 × 25 ) - 5 = 75 - 5 = 70

2x + 20 = (2 × 25 ) + 20 = 50 + 20 = 70

confirming that x = 25


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