Solve the equation algebraicly for the exact vaule of x check your work : the equation is 6 - 2/4 (x + 5) = 4x

x = 7/9

Step-by-step explanation:

Solve for x:

(-x - 5)/2 + 6 = 4 x

Put each term in (-x - 5)/2 + 6 over the common denominator 2: (-x - 5)/2 + 6 = 12/2 + (-x - 5)/2:

12/2 + (-x - 5)/2 = 4 x

12/2 + (-x - 5)/2 = ((-x - 5) + 12)/2:

(-x - 5 + 12)/2 = 4 x

Grouping like terms, -x - 5 + 12 = (12 - 5) - x:

((12 - 5) - x)/2 = 4 x

12 - 5 = 7:

(7 - x)/2 = 4 x

Multiply both sides by 2:

(2 (7 - x))/2 = 2×4 x

(2 (7 - x))/2 = 2/2×(7 - x) = 7 - x:

7 - x = 2×4 x

2×4 = 8:

7 - x = 8 x

Subtract 8 x from both sides:

7 + (-x - 8 x) = 8 x - 8 x

-x - 8 x = -9 x:

-9 x + 7 = 8 x - 8 x

8 x - 8 x = 0:

7 - 9 x = 0

Subtract 7 from both sides:

(7 - 7) - 9 x = -7

7 - 7 = 0:

-9 x = -7

Divide both sides of -9 x = -7 by -9:

(-9 x)/(-9) = (-7)/(-9)

(-9)/(-9) = 1:

x = (-7)/(-9)

Multiply numerator and denominator of (-7)/(-9) by -1:

 x = 7/9

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.