I NEED HELP ON THIS BADLY PLEASE!!!! IM GIVING LOTS OF POINTS AND BRAINLIEST!!! This is due today so it would help so so much if someone can help me with this please

Answer:
C) 1
Step-by-step explanation:
If figure ABCD is a parallelogram, then its opposite sides will be equal in length. This means that BC = AD.
Therefore, to find the value of x for which ABCD is a parallelogram, set the expressions for the side lengths BC and AD equal to each other and solve for x:
[tex]BC=AD\\\\4x+7=x+10\\\\4x+7-x=x+10-x\\\\3x+7=10\\\\3x+7-7=10-7\\\\3x=3\\\\x=1[/tex]
Therefore, the value of x is:
[tex]\LARGE\boxed{\boxed{x=1}}[/tex]
Answer:
1
Step-by-step explanation:
Since the opposite side of the parallelogram are equal.
So,
BC = AD
Substitute the value:
4x + 7 = x + 10
Subtract x on both sides:
4x + 7 - x = x + 10 - x
3x + 7 = 10
Subtract 7 on both sides:
3x + 7 - 7 = 10 - 7
3x = 3
Divide both sides by 3.
[tex]\dfrac{3x}{3} = \dfrac{3}{3}[/tex]
x = 1
So, the value of x is 1.