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qaws [65]
3 years ago
15

What is the solution to the above system of equations?

Mathematics
2 answers:
kow [346]3 years ago
8 0

(x , y) = (7, - 1)

2x + 3y = 11 → (1)

3x + 3y = 18 → (2)

subtracting (1) from (2) term by term eliminates the y- term

(3x - 2x) + (3y - 3y) = (18 - 11)

x + 0 = 7 ⇒ x = 7

substitute x = 7 into either of the 2 equations and solve for y

(1) → (2 × 7) + 3y = 11

14 + 3y = 11

subtract 14 from both sides

3y = 11 - 14 = - 3

divide both sides by 3

\frac{- 3}{3} = - 1

solution is (7 , -1)


pentagon [3]3 years ago
8 0

Answer:

the answer is C. (7,-1)

Step-by-step explanation:

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I need it solved and explaned
sasho [114]

Answer:

m = -24

Step-by-step explanation:

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8 0
3 years ago
Read 2 more answers
Cary is 9 years older than Dan. In 7 years, the sum of their ages will equal 93. Find both of their
a_sh-v [17]
Cary's age is 9 years MORE than Dan's age.
Cary's age is Dan's age, but with 9 more years added to that.
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\rm C=D+9
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and Dan will be D+7 years old.
In 7 years, the sum of their ages,
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Here is how we can express that:
\rm (C+7)+(D+7)=93

You have a system of two equations involving two unknowns. You have a couple of nice options here. You can apply substitution or elimination to complete the problem.
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Answer:

?

Step-by-step explanation:

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