B+4/7=-3

Solve for B

B + 4/7 = - 3, first, subtract 4/7 from each side,

b = - 3 - 4/7, combine like terms,

b = - 3 4/7.

^ There's your answer!

You subtract 4/7 from the - 3 to get the variable by itself. Your answer will be - 3 and 4/7 or - 25/7 (both of those fractions equal the same #, they're just written differently)