19=-4(2r-7)

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Solution for 19=-4(2r-7) equation:


Simplifying
19 = -4(2r + -7)

Reorder the terms:
19 = -4(-7 + 2r)
19 = (-7 * -4 + 2r * -4)
19 = (28 + -8r)

Solving
19 = 28 + -8r

Solving for variable 'r'.

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

Add '8r' to each side of the equation.
19 + 8r = 28 + -8r + 8r

Combine like terms: -8r + 8r = 0
19 + 8r = 28 + 0
19 + 8r = 28

Add '-19' to each side of the equation.
19 + -19 + 8r = 28 + -19

Combine like terms: 19 + -19 = 0
0 + 8r = 28 + -19
8r = 28 + -19

Combine like terms: 28 + -19 = 9
8r = 9

Divide each side by '8'.
r = 1.125

Simplifying
r = 1.125

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