9(2r-5)-3=7r-4

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Solution for 9(2r-5)-3=7r-4 equation:


Simplifying
9(2r + -5) + -3 = 7r + -4

Reorder the terms:
9(-5 + 2r) + -3 = 7r + -4
(-5 * 9 + 2r * 9) + -3 = 7r + -4
(-45 + 18r) + -3 = 7r + -4

Reorder the terms:
-45 + -3 + 18r = 7r + -4

Combine like terms: -45 + -3 = -48
-48 + 18r = 7r + -4

Reorder the terms:
-48 + 18r = -4 + 7r

Solving
-48 + 18r = -4 + 7r

Solving for variable 'r'.

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

Add '-7r' to each side of the equation.
-48 + 18r + -7r = -4 + 7r + -7r

Combine like terms: 18r + -7r = 11r
-48 + 11r = -4 + 7r + -7r

Combine like terms: 7r + -7r = 0
-48 + 11r = -4 + 0
-48 + 11r = -4

Add '48' to each side of the equation.
-48 + 48 + 11r = -4 + 48

Combine like terms: -48 + 48 = 0
0 + 11r = -4 + 48
11r = -4 + 48

Combine like terms: -4 + 48 = 44
11r = 44

Divide each side by '11'.
r = 4

Simplifying
r = 4

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