3*7(21-7)=y-1

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Solution for 3*7(21-7)=y-1 equation:


Simplifying
3 * 7(21 + -7) = y + -1

Combine like terms: 21 + -7 = 14
3 * 7(14) = y + -1

Multiply 3 * 7
21 * 14 = y + -1

Multiply 21 * 14
294 = y + -1

Reorder the terms:
294 = -1 + y

Solving
294 = -1 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
294 + -1y = -1 + y + -1y

Combine like terms: y + -1y = 0
294 + -1y = -1 + 0
294 + -1y = -1

Add '-294' to each side of the equation.
294 + -294 + -1y = -1 + -294

Combine like terms: 294 + -294 = 0
0 + -1y = -1 + -294
-1y = -1 + -294

Combine like terms: -1 + -294 = -295
-1y = -295

Divide each side by '-1'.
y = 295

Simplifying
y = 295

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