The length of the base of an isosceles triangle is x. The length of a leg is 3x-4. The perimeter of the triangle is 34 . Find x

X=12

Step-by-step explanation:

2(3x-4) + x = 76

6x-8+x=76

7x-8=76

7x=84

x=12

3(12) - 4 =36-4 = 32

32 times 2 = 64 +12 =76

x = 6

Step-by-step explanation:

The base of this triangle is x.  The other two sides are equal and have length 3x - 4.  The perimeter of the triangle is thus x + 2(3x - 4) = 34, which can be solved for x.

Multiplying as indicated, we get x + 6x - 8 = 34, or 7x = 42.

Dividing both sides by 7, we get x = 6.

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step-by-step explanation:

exa:

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3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.