Variables and Algebraic Expressions: Only addition and subtraction

Question 1

Are the expressions the same or not?

$$ 18x $$

$$ 2+9x $$

Question 2

$$ x+x= $$

Question 3

$$ 5+8-9+5x-4x= $$

Question 4

$$ 5+0+8x-5= $$

Question 5

$$ 11+5x-2x+8= $$

Examples with solutions for Variables and Algebraic Expressions: Only addition and subtraction

Are the expressions the same or not?

$18x$

$2+9x$

$x+x=$

$2x$

$5+8-9+5x-4x=$

4+X

$5+0+8x-5=$

$8X$

$11+5x-2x+8=$

19+3X

Question 1

Are the expressions the same or not?

$$ 15x-30 $$

$$ 45-15-5x+15x $$

Are the expressions the same or not?

$15x-30$

$45-15-5x+15x$