1) 1/4+1/2
We need to convert the fractions.
1/4 is fine.
1 x 2=2
2 x 2=4
1/4+2/4=3/4
2) a+a
a can be written as 1a.
1a+1a=2a
I can't see photos and he doesn't know 3 or 4 and i'm confused on 5.
a=?
Hope it helps?
Step-by-step explanation:
Below is an attachment containing the solution.
Answer:
No solution
Step-by-step explanation:
2x -y =7
y= 2x +3
- Substitute the y value. <em>2x-(2x+3)=7 or 2x -2x-3=7 </em>
- Eliminate opposites <em>2x <u>-2x</u>-3=7 >>>> -3=7</em>
- Answer <em>-3= 7</em> ( false)