Question

No solution or various solutions..7x-3x+7=3(x-4)+20 ​

Answer 1

$\bold{Heya...}$

7x - 3x + 7 = 3(x - 4) + 20.

⇒ E x p l a n a t i o n : -

Let's solve your equation step-by-step ~

$\mathtt{7x - 3x + 7 = 3(x - 4) + 20}$

Step 1: Simplify both sides of the equation.

$\mathtt{7x - 3x + 7 = 3(x \: - \: 4) \: + \: 20}$

$\mathtt{7x \: + \: - \: 3x \: + \: 7 \: = \: (3) \: (x) \: + \: (3) \: (-4) \: + \: 20}$  (distribute)

$\mathtt{7x \: + \: - \: 3x \: + \: 7 \: = \: 3x \: + \: - \: 12 \: + \: 20}$

$\mathtt{(7x \: + \: -3x) \: + \: (7) \: = \: (3x) \: + \: (-12 \: + 20)}$  (combine like terms)

$\mathtt{4x \: + \: 7 \: = \: 3x \: + \: 8}$

Step 2: Subtract 3x from both sides.

$\mathtt{4x \: + \: 7 \: - \: 3x \: = \: 3x \: + \: 8 \: - \: 3x}$

$\mathtt{x \: + 7 \: = \: 8}$

Step 3: Subtract 7 from both sides.

$\mathtt{x \: + \: 7 \: - \: 7 \: = \: 8 \: - \: 7}$

$\mathtt{x \: = \: 1}$

$\underline{A \: n \: s \: w \: e \: r \: :}$

$\mathtt{x \: = \: 1}$

Hope It Helps U...

#LearnWithBrainly

$\sf{ItzSehzadi}$

Answer 2

∑ Hey, claudiavg2000 ⊃

Answer:

One solution : x = 1

Step-by-step explanation:

Given:

7x-3x+7=3(x-4)+20

Solve:

7x-3x+7=3(x-4)+20

Subtracting 7x -3x

7x - 3x = 4x

Thus we have,

4x + 7 = 3(x-4) + 20

Now we have to expand 3 (x - 4 )  + 20

3 · x = 3x

3 · -4 = - 12

3x - 12 + 20

3x + 8

Now we have;

4x + 7 = 3x + 8

Subtracting 7 from both sides:

4x + 7 -7 = 3x + 8 -7

4x = 3x + 1

Subtracting 3x from both sides:

4x - 3x = 3x + 1 - 3x

x = 1

Hence, there is one solution which is x = 1.

xcookiex12

8/18/2022