The perimeter of an equillateral triangle is 63 inches. If the length of each side is (4x-3), find the value of x.
2 answers:
Since all sides are congruent, the perimeter is 3 times the length of 1 side.
3(4x - 3) = 63
Divide both sides by 3:
4x - 3 = 21
Add 3 to both sides:
4x = 24
Divide both sides by 4:
x = 6
Hello there,
1 side= (4x-3)
3 sides= (4x-3)3
= (12x-9)
To find the value of x,
12x-9= 63
12x= 63+9
12x=72
x=6
On side note: Remember to change the sign when it crosses the equal sign. (for example: -2 will become 2 once it crosses the equal sign)
Hope this helps:))
~Top
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