7x+3[5r-16]=84

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Solution for 7x+3[5r-16]=84 equation:


Simplifying
7x + 3[5r + -16] = 84

Reorder the terms:
7x + 3[-16 + 5r] = 84
7x + [-16 * 3 + 5r * 3] = 84
7x + [-48 + 15r] = 84

Reorder the terms:
-48 + 15r + 7x = 84

Solving
-48 + 15r + 7x = 84

Solving for variable 'r'.

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

Add '48' to each side of the equation.
-48 + 15r + 48 + 7x = 84 + 48

Reorder the terms:
-48 + 48 + 15r + 7x = 84 + 48

Combine like terms: -48 + 48 = 0
0 + 15r + 7x = 84 + 48
15r + 7x = 84 + 48

Combine like terms: 84 + 48 = 132
15r + 7x = 132

Add '-7x' to each side of the equation.
15r + 7x + -7x = 132 + -7x

Combine like terms: 7x + -7x = 0
15r + 0 = 132 + -7x
15r = 132 + -7x

Divide each side by '15'.
r = 8.8 + -0.4666666667x

Simplifying
r = 8.8 + -0.4666666667x

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