5r+2=7(8-7r)

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Solution for 5r+2=7(8-7r) equation:


Simplifying
5r + 2 = 7(8 + -7r)

Reorder the terms:
2 + 5r = 7(8 + -7r)
2 + 5r = (8 * 7 + -7r * 7)
2 + 5r = (56 + -49r)

Solving
2 + 5r = 56 + -49r

Solving for variable 'r'.

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

Add '49r' to each side of the equation.
2 + 5r + 49r = 56 + -49r + 49r

Combine like terms: 5r + 49r = 54r
2 + 54r = 56 + -49r + 49r

Combine like terms: -49r + 49r = 0
2 + 54r = 56 + 0
2 + 54r = 56

Add '-2' to each side of the equation.
2 + -2 + 54r = 56 + -2

Combine like terms: 2 + -2 = 0
0 + 54r = 56 + -2
54r = 56 + -2

Combine like terms: 56 + -2 = 54
54r = 54

Divide each side by '54'.
r = 1

Simplifying
r = 1

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