what is 15 = -y + 10

Sagot :

It's a simple linear equation in a single variable, 'y' .  Its solution is the number
that 'y' must be in order to make the equation a true statement.  Here's how to
find the solution:

Write the equation:    15 = -y + 10

Subtract 10 from each side:    5 = -y

Multiply each side by -1 :      -5 = y
15=-y+10
=-10+15=-y
=5=-y
=-5=y
welcome :)