11x + y = -11
subtract 11x from both sides
y = -11x - 11
Answer:
x = 3.5
Step-by-step explanation:
First, we'll expand the parenthesis by multiplying 2x and -9 with 5:
Let's just simplify -45 + 3:
Now we can add 42 to both sides:
Finally, let's divide both sides by 10 to find x:
Answer: x = 3.5
Answer:
21x-15
Step-by-step explanation:
Use the distributive property:
3×7x=21x
3×5=15
Don't forget the - sign!!!
So,
3(7x - 5) = 21x - 15
Answer:
gradient (slope) = -1/2
Step-by-step explanation:
Using the gradient formula: rise over run
Answer:
Line is y = -3x + 3
Slope = -3
y-intercept = 3
Step-by-step explanation:
Slope is the movement up or down, and left or right. Y-intercept is the point in which the line crosses the y-axis. In slope-intercept form (y=mx+b), m represents the slope, while b represents the y-intercept.
So since the line crosses the y-axis at positive 3, that will be the y-intercept. Now if we go from that very same point, and do rise/run, we'd move downwards 3 units and to the right 1 unit, to get our slope of -3/1 (it's written as just -3 though).
So now we plug it in: y = -3x + 3
Hope this helps you :)