Question

22
m.20 find the number of solutions
how many solutions does this equation have?
$-1 + 7f = 7f + 5$
no solution
one solution
infinitely many solutions

Explanation:

Step1: Subtract $7f$ from both sides

$-1 + 7f - 7f = 7f + 5 - 7f$

Step2: Simplify both sides

$-1 = 5$

Answer:

no solution