“To figure out how many years I have been teaching solve the following:
My years teaching (y) is equal to 100% of three times your age this school year (I’m 13).

Can you write an equation and show the steps how you would solve it? Don't just give me an answer. Good Luck!”
Guys this is for my math teacher and at first I thought I got the answer but then I started over thinking it and I have millions of ways of solving it but the are prob wrong. I highly appreciate it if you’d help me. Thx!

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

oh

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