2-(y + 2) = 3y
Solve for y
1 answer:
Answer:
y=0
Step-by-step explanation:
Reorder the terms:
2 + -1(2 + y) = 3y
2 + (2 * -1 + y * -1) = 3y
2 + (-2 + -1y) = 3y
Combine like terms: 2 + -2 = 0
0 + -1y = 3y
-1y = 3y
Solving
-1y = 3y
Add '-3y' to each side of the equation.
-1y + -3y = 3y + -3y
Combine like terms: -1y + -3y = -4y
-4y = 3y + -3y
Combine like terms: 3y + -3y = 0
-4y = 0
Divide each side by '-4'.
y = 0
hope this helps
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Step-by-step explanation:
Substitute the y in the 1st equation with the 2nd equation.
7x + 10(2x + 9) = 36
7x + 20x + 90 = 36
27x + 90 = 36
3x + 10 = 4
3x = -6
x = -2
So now we can find y.
y = 2x + 9 = 2(-2) + 9 = (-4) + 9 = 5.
So x = -2, y = 5.
Answer:
No solution
Step-by-step explanation:
3(5x+7) = 30 + 15x
DISTRIBUTE
15x+21 = 30+15x
15x-15x = 0
So no solution
Answer:
2,070,281
Step-by-step explanation:
let x = number of years
let y = population
Given:
- initial population = 500000
- rate of increase = 7%
y = 500000 × 1.07^x
when x = 21:
y = 500000 × 1.07^(21) = 2070281.187... = 2,070,281
Step-by-step explanation:
7.28 is the answer sorry if i’m wrong
