3*(21+y)=(3*21)+(2*5)

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Solution for 3*(21+y)=(3*21)+(2*5) equation: 


Simplifying
3(21 + y) = (3 * 21) + (2 * 5)
(21 * 3 + y * 3) = (3 * 21) + (2 * 5)
(63 + 3y) = (3 * 21) + (2 * 5)

Multiply 3 * 21
63 + 3y = (63) + (2 * 5)
63 + 3y = 63 + (2 * 5)

Multiply 2 * 5
63 + 3y = 63 + (10)
63 + 3y = 63 + 10

Combine like terms: 63 + 10 = 73
63 + 3y = 73

Solving
63 + 3y = 73

Solving for variable 'y'.

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

Add '-63' to each side of the equation.
63 + -63 + 3y = 73 + -63

Combine like terms: 63 + -63 = 0
0 + 3y = 73 + -63
3y = 73 + -63

Combine like terms: 73 + -63 = 10
3y = 10

Divide each side by '3'.
y = 3.333333333

Simplifying
y = 3.333333333

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