Question

Choose Yes or No to tell if each pair of expressions is equivalent. No 3x + 1 -x+1 and 4x + 1 4 Yes 2 + 6x and 2(3x + 1) No 3(x + 1) - (1 + x) and 2x + 3 Choose... 3x and 4(x + 1) = x - 4 2 Choose... 5.5 + 2.1+ 3.8x _ 4.1 and 1.4 + 5.9x

Answer 1

We have the following:

The first

$3x=4\cdot(x+1)-x-4$

resolving:

$4\cdot(x+1)-x-4=4x+4-x-4=3x$

The answer is yes

The second:

$5.5+2.1x+3.8x-4.1=1.4+5.9x$

resolving:

$5.5+2.1x+3.8x-4.1=5.9x+1.4$

The answer is yes