3r+7=(-5r)-4

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Solution for 3r+7=(-5r)-4 equation:


Simplifying
3r + 7 = (-5r) + -4

Reorder the terms:
7 + 3r = (-5r) + -4

Reorder the terms:
7 + 3r = -4 + (-5r)

Solving
7 + 3r = -4 + (-5r)

Solving for variable 'r'.

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

Add '(5r)' to each side of the equation.
7 + 3r + (5r) = -4 + (-5r) + (5r)

Combine like terms: 3r + (5r) = 8r
7 + 8r = -4 + (-5r) + (5r)

Combine like terms: (-5r) + (5r) = 0
7 + 8r = -4 + 0
7 + 8r = -4

Add '-7' to each side of the equation.
7 + -7 + 8r = -4 + -7

Combine like terms: 7 + -7 = 0
0 + 8r = -4 + -7
8r = -4 + -7

Combine like terms: -4 + -7 = -11
8r = -11

Divide each side by '8'.
r = -1.375

Simplifying
r = -1.375

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