-9(4t+rt)=0.3(7t+25)

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Solution for -9(4t+rt)=0.3(7t+25) equation:


Simplifying
-9(4t + rt) = 0.3(7t + 25)

Reorder the terms:
-9(rt + 4t) = 0.3(7t + 25)
(rt * -9 + 4t * -9) = 0.3(7t + 25)
(-9rt + -36t) = 0.3(7t + 25)

Reorder the terms:
-9rt + -36t = 0.3(25 + 7t)
-9rt + -36t = (25 * 0.3 + 7t * 0.3)
-9rt + -36t = (7.5 + 2.1t)

Solving
-9rt + -36t = 7.5 + 2.1t

Solving for variable 'r'.

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

Add '36t' to each side of the equation.
-9rt + -36t + 36t = 7.5 + 2.1t + 36t

Combine like terms: -36t + 36t = 0
-9rt + 0 = 7.5 + 2.1t + 36t
-9rt = 7.5 + 2.1t + 36t

Combine like terms: 2.1t + 36t = 38.1t
-9rt = 7.5 + 38.1t

Divide each side by '-9t'.
r = -0.8333333333t-1 + -4.233333333

Simplifying
r = -0.8333333333t-1 + -4.233333333

Reorder the terms:
r = -4.233333333 + -0.8333333333t-1

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