Solve 0.5(y-9) = 22.5

=54

Step-by-step explanation:

- Combine multiplied terms into a single fraction

0.5(-9)=22.51(−9)2=22.52

- Multiply by 1

- Multiply all terms by the same value to eliminate fraction denominators

- Cancel multiplied terms that are in the denominator

- Multiply the numbers

- Add 999

- to both sides of the equation

- Simplify

0.5 y - 4.5 = 22.5

0.5y = 22.5 +4.5

0.5 y = 27

y = 27 / 0.5

y = 54

may it help

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form