3(4t+5)-2(3r+4)=7

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Solution for 3(4t+5)-2(3r+4)=7 equation:


Simplifying
3(4t + 5) + -2(3r + 4) = 7

Reorder the terms:
3(5 + 4t) + -2(3r + 4) = 7
(5 * 3 + 4t * 3) + -2(3r + 4) = 7
(15 + 12t) + -2(3r + 4) = 7

Reorder the terms:
15 + 12t + -2(4 + 3r) = 7
15 + 12t + (4 * -2 + 3r * -2) = 7
15 + 12t + (-8 + -6r) = 7

Reorder the terms:
15 + -8 + -6r + 12t = 7

Combine like terms: 15 + -8 = 7
7 + -6r + 12t = 7

Add '-7' to each side of the equation.
7 + -6r + -7 + 12t = 7 + -7

Reorder the terms:
7 + -7 + -6r + 12t = 7 + -7

Combine like terms: 7 + -7 = 0
0 + -6r + 12t = 7 + -7
-6r + 12t = 7 + -7

Combine like terms: 7 + -7 = 0
-6r + 12t = 0

Solving
-6r + 12t = 0

Solving for variable 'r'.

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

Add '-12t' to each side of the equation.
-6r + 12t + -12t = 0 + -12t

Combine like terms: 12t + -12t = 0
-6r + 0 = 0 + -12t
-6r = 0 + -12t
Remove the zero:
-6r = -12t

Divide each side by '-6'.
r = 2t

Simplifying
r = 2t

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