The answer is y= -4/7x+2
explanation
1. subtract 4x from both sides
2. divide every term by 7
In y = mx + b form, the slope is in the m position and the y intercept is in the b position.
y = (m)x + (b)
y = -5 x + 5.....slope (m position) = -5....y int (b position) = 5
When multiplying numbers a negative number will make a positive into a negative. Yet if multiplied again by another negative it will cancel out or make it positive again. Seeing as answer c has only one negative it's the correct answer.
We know that a triangle is 180 degrees.
x=39
