Question

11.Solve :- 8x + 7 = 6x - 5 *

(a) - 6

(b) 6

(c) -12

(d) 12
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Answer 1

Answer:

-6

Step-by-step explanation:

Simplifying

8x + 7 = 6x + -5

Reorder the terms:

7 + 8x = 6x + -5

Reorder the terms:

7 + 8x = -5 + 6x

Solving

7 + 8x = -5 + 6x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6x' to each side of the equation.

7 + 8x + -6x = -5 + 6x + -6x

Combine like terms: 8x + -6x = 2x

7 + 2x = -5 + 6x + -6x

Combine like terms: 6x + -6x = 0

7 + 2x = -5 + 0

7 + 2x = -5

Add '-7' to each side of the equation.

7 + -7 + 2x = -5 + -7

Combine like terms: 7 + -7 = 0

0 + 2x = -5 + -7

2x = -5 + -7

Combine like terms: -5 + -7 = -12

2x = -12

Divide each side by '2'.

x = -6

Simplifying

x = -6

Answer 2

Answer:

-6

Step-by-step explanation:

8x +7= 6x - 5

8x -6x= -5 -7

2x= -12

x= -12/2

x=-6