Question

Select each pair of expressions that are equivalent. 03x+ -x+1 } and 4x + 1 3 2 + 6x and 2(3x + 1) 3(x + 1) – (1 – X) and 2x + 3 3x and 4(x + 1) - X-4 O 5.5 + 2.2x + 3.8x - 4.1 and 1.4 + 6x

Answer 1

the given expression is,

3x + 1/4 - x + 1 1/2

= 3x - x + 1/4 + 3/2

= 2x + (1+6)/4

= 2x + 7/4

= 2x + 1 3/4

so, the given expressions are equivalents.

2 + 6x

take common 2

2(1 + 3x ) or 2(3x + 1)

so the given expressions are also equivalents.

3(x + 1) - (1 - x)

= 3x + 3 - 1 + x

= 4x +2

so the given expressions are not equivalents.

4(x+1) -x -4

4x + 4 - x - 4 = 3x

so,the given expressions are equivalents.

5.5 + 2.2x + 3.8x -4.1

= 1.4 + 6x

so,the given expressions are equivalents.

so in the all given expression only expression 3 is not equivalents.and all others are equivalents