
Step-by-step explanation:
3 ax + 4ax = 5ax + 4, combine like terms
7ax = 5ax + 4, minus 5ax from both sides
2ax = 4, divide 2a on both sides
you'll be left with x = 2/a
18? because 45 divide by 5 is 9, and 5 cookies minus 3 is 2, so multiply 9 by 2 for 18
You need another equation to be able to solve this
√x+9=12
√x=3
(√x)²=3²
x=9 option D
The solutions for the following expressions are:
1. 0.5*2 = 1
2. -0.2+-0.05= -0.25
3. absolute value of (-3+2.75) = 0.25
4. -(-0.25) = 0.25
5. 2x-1.75x = 0.25x
The expression equivalent to 0.25 is numbers 3 and 4.