They both represent the expression, because when simplified the expression equals 8x+4, but you could also write it like 2(3x+2)+2x
<span>x = Joe's age and </span><span>y = James's age
</span><span>Joe is 10 years older than James - equation - x = y + 10
</span><span>In 8 years twice Joe's age will equal three times James's age - equation -
2(x+8) = 3(y+8)
</span>
<span>2(x+8) = 3(y+8) </span>
<span>2(y + 10 +8) = 3(y+8) { substitute y + 10 for x </span>
<span>2(y + 18) = 3(y + 8) </span>
<span>2y + 36 = 3y + 24 </span>
<span>12 = y </span>
<span>Joe is 22 and James is 12.</span>
1. Diagonals of kite bisect each other but kite is not parallelogram.
2. Square - the diagonals bisect each other
3. Rhombus - the diagonals bisect each others.
Not all parallelogram have their diagonals bisecting each other.
