Answer:
PLEASE READ EXPLANATION
1. [tex]x = 7[/tex]
2. [tex]b = 3[/tex]
3. [tex]n = 6[/tex]
4. [tex]b = 1[/tex]
Step-by-step explanation:
I’m going to assume the equations are as following - you made it a bit hard to read.
[tex]x - 7 = 0[/tex]
[tex]-15 = b - 18[/tex]
[tex]4 = n-2[/tex]
[tex]b-(-16) = 17[/tex]
I’m just shooting guesses here, if I said an equation wrong PLEASE let me know.
We can solve each equation by isolating x on one side.
Number 1:
[tex]x - 7 = 0\\\\x - 7 + 7 = 0 + 7\\\\x = 7[/tex]
Number 2:
[tex]-15 = b - 18\\\\-15 + 18 = b - 18 + 18\\\\3 = b[/tex]
Number 3:
[tex]4 = n-2\\\\4 + 2 = n - 2 + 2\\\\n = 6[/tex]
Number 4:
[tex]b-(-16) = 17\\\\b+16=17\\\\b + 16 - 16 = 17 - 16\\\\b = 1[/tex]
Hope this helped!