Respuesta :

penfila11Pen
[tex] \frac{1}{4} [/tex]b - 10 = 7
Take 10 to the other side.

[tex] \frac{1}{4} [/tex]b = 17

Multiply by 4 to isolate b
[tex] \frac{1}{4} [/tex]b × 4 = 17 × 4

4 and 4 cancels out
 
b = 68