Question

Can someone please answer this for me ? thanks

Answer 1

Answer:

x=-4.5

Step-by-step explanation:

In the given triangle, Two sides are divided into equal part.

It means D and E is mid point of AB and AC.

Mid-point theorem: The line joining  the mid points of sides of a triangle then line (DE) parallel to BC and DE is half of BC.

In the given figure, (Attachment)

DE = 3x+4

BC = 4x-1

$DE=\dfrac{1}{2}BC$             [mid-point theorem]

$3x+4=\dfrac{1}{2}(4x-1)$

$2(3x+4)=4x-1$

$6x+8=4x-1$

$6x-4x=-9$

$2x=-9$

$x=-4.5$

Hence, The value of x is -4.5

Answer 2

3x +4 is 7x and 4x- 1 is 3x because yhat how you solve that