(4.5y +9)-(6.2-3.1y)= 7.2y+2.8

0

Step-by-step explanation:

(4.5y+9)-(6.2-3.1y)=7.2y+2.8

4.5y+9-6.2+3.1y=7.2y+2.8

4.5y+3.1y+9-6.2=7.2y+2.8

7.6y+2.8=7.2y+2.8

7.6y-7.2y=2.8-2.8

0.4y/0.4=0/0.4

y=0

I hope this helps

y=0

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable

1. Open the brackets

problem: 4.5y + 9 - 6.2 + 3.1y= 7.2y + 2.8

2. Combine like terms/solve for y

problem: 7.2y-4.5y-3.1y=-0.4y

-0.4y=9- 6.2 - 2.8=0

3. Solve/algebra

-0.4y=0

*-0.4 divided by zero is 0, (anything divided by 0 is 0!)

y=0

Cheers! Hope you understand this.

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step-by-step explanation:

hopefully im right

step-by-step explanation:

through just a quick inspection, one can see that the graph of this cubing function starts in quadrant iii and ends in quadrant i.   when x = 0, y = 3, so the y-intercept is (0, 3).

if graphs are part of the problem statement, share them.   .