[tex]5(u - 1) = 3u + 9 - 2( - 3 - 2)[/tex]
Distribute 5 through the parenthesis and calculate the sum or difference from (- 3-2).
[tex]5u - 5 = 3u + 9 - 2 \times ( - 5)[/tex]
Multiply the numbers - 2 × (-5). Multiplying two negatives equals a positive (-) × (-) = (+)
=> 5u - 5 = 3u + 9 + 10
Add the numbers 9 + 10
=> 5u - 5 = 3u + 19
Move terms. Move variable 3u to the left side and change its sign. Move constant - 5 to the right side and change its sign.
=> 5u - 3u = 19 + 5
Collect the like terms and add the numbers.
=> 2u = 24
Divide both sides of the equation by 2
=> u = 12
