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4 years ago

Solve the equation. 27x - 6 = 9x - 1

Mathematics

2 answers:

Evgesh-ka [11]4 years ago

5 0

27x-6=9x-1
27x-9x =-1+6
18x = 5
x = 5/18

loris [4]4 years ago

5 0

Answer:

The answer is D

Step-by-step explanation:

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X + y = 92 and y = 3x - 4

Advocard [28]

∑ Hey, eduardolozanosalgado ⊃

Answer:

x=24 , y=68

Step-by-step explanation:

Given:

$\mathrm{\begin{bmatrix}x+y=92\\ y=3x-4\end{bmatrix}}$

Solution:

Substitute: $\mathrm{y = 3x-4}$

$\begin{bmatrix}x+3x-4=92\end{bmatrix}$

Isolate x for 4x - 4= 92 : x = 24

Substitute : x = 24

$y=3\cdot \:24-4$

$y=64$

Hence, the solutions are : $x=24,\:y=68$

xcookiex12

8/19/2022

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2 years ago

What is the answer to 7+10x45=?

Klio2033 [76]

 $answer = 457 \\ solution \\ 7 + 10 \times 45 \\ = 7 + 450 \\ = 457 \\ hope \: it \: helps \\ good \: luck \: on \: your \: assignment$ 

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4 years ago

Read 2 more answers

Tell which equation you use to solve for one of the variables when solving the system by substitution: 2x + 3y = 5 or 4x - y =3

mixas84 [53]

You can using any equation you want to solve for one of the variables. For instance, if you want to solve for x you turn one of the equations so y is by its self

2x + 3y = 5
4x - y =3

I am going to use 4x - y =3
-y = -4x + 3
y = 4x -3
Now you can substitute 4x - 3 for y in 2x + 3y = 5 and solve for x
2x + 3y = 5
2x + 3(4x - 3) = 5

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Answer:

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Step-by-step explanation:

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