-(3r-5s+7t)-(10s-4r-3t)=

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Solution for -(3r-5s+7t)-(10s-4r-3t)= equation:


Simplifying
-1(3r + -5s + 7t) + -1(10s + -4r + -3t) = 0
(3r * -1 + -5s * -1 + 7t * -1) + -1(10s + -4r + -3t) = 0
(-3r + 5s + -7t) + -1(10s + -4r + -3t) = 0

Reorder the terms:
-3r + 5s + -7t + -1(-4r + 10s + -3t) = 0
-3r + 5s + -7t + (-4r * -1 + 10s * -1 + -3t * -1) = 0
-3r + 5s + -7t + (4r + -10s + 3t) = 0

Reorder the terms:
-3r + 4r + 5s + -10s + -7t + 3t = 0

Combine like terms: -3r + 4r = 1r
1r + 5s + -10s + -7t + 3t = 0

Combine like terms: 5s + -10s = -5s
1r + -5s + -7t + 3t = 0

Combine like terms: -7t + 3t = -4t
1r + -5s + -4t = 0

Solving
1r + -5s + -4t = 0

Solving for variable 'r'.

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

Add '5s' to each side of the equation.
1r + -5s + 5s + -4t = 0 + 5s

Combine like terms: -5s + 5s = 0
1r + 0 + -4t = 0 + 5s
1r + -4t = 0 + 5s
Remove the zero:
1r + -4t = 5s

Add '4t' to each side of the equation.
1r + -4t + 4t = 5s + 4t

Combine like terms: -4t + 4t = 0
1r + 0 = 5s + 4t
1r = 5s + 4t

Divide each side by '1'.
r = 5s + 4t

Simplifying
r = 5s + 4t

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