6x + 3
Step-by-step explanation:
Perimeter of this Triangle will be the sum of the 3 sides;
P = 2x + (x+4) + (3x - 1)
We expound the equation to remove the brackets;
P = 2x + x+ 4 + 3x – 1
Then we add like terms together;
P = 2x + x + 3x + 4 – 1
P = 6x + 3
We can't simplify any further so the answer is;
P = 6x + 3
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