Answer:
Solve using the substitution method! Answer down below:)
Step-by-step explanation:
(a,b,c) = ( -12, -27/2,43)
Hope it helps:)
It should be one hundred twenty six (126) if my math is correct

- <u>How to calculate percentage of a number. Use the percentage formula: P% * X = Y</u>
- <u>Convert the problem to an equation using the percentage formula: P% * X = Y.</u>
- <u>P is 10%, X is 150, so the equation is 10% * 150 = Y.</u>
- <u>Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.</u>
- <u>Multiply by 100 and add a percentage </u><u>sign</u>
- <u>0.876 = 0.876 * 100 = 87.6%</u>
<h2><u>hope</u><u> it</u><u> helps</u></h2>
So you make your equation 4x+20+40=180.
Add like terms and get 4x+60=180.
Subtract 60 from both sides, get 4x=120.
Divide boths sides by 4, get your answer of x=30.
Hope this helps
Answer:
(2, 3 )
Step-by-step explanation:
Given the 2 equations
2x - 3y = - 5 → (1)
5x + 4y = 22 → (2) [ rearranged equation ]
Multiplying (1) by 4 and (2) by 3 and adding will eliminate the term in y
8x - 12y = - 20 → (3)
15x + 12y = 66 → (4)
Add (3) and (4) term by term to eliminate y, that is
23x = 46 ( divide both sides by 23 )
x = 2
Substitute x = 2 in either of the 2 equations and evaluate for y
Substituting into (2)
5)2) + 4y = 22
10 + 4y = 22 ( subtract 10 from both sides )
4y = 12 ( divide both sides by 4 )
y = 3
Solution is (2, 3 )