3(-7)-4y+15(-3)=-1

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Solution for 3(-7)-4y+15(-3)=-1 equation:


Simplifying
3(-7) + -4y + 15(-3) = -1

Multiply 3 * -7
-21 + -4y + 15(-3) = -1

Multiply 15 * -3
-21 + -4y + -45 = -1

Reorder the terms:
-21 + -45 + -4y = -1

Combine like terms: -21 + -45 = -66
-66 + -4y = -1

Solving
-66 + -4y = -1

Solving for variable 'y'.

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

Add '66' to each side of the equation.
-66 + 66 + -4y = -1 + 66

Combine like terms: -66 + 66 = 0
0 + -4y = -1 + 66
-4y = -1 + 66

Combine like terms: -1 + 66 = 65
-4y = 65

Divide each side by '-4'.
y = -16.25

Simplifying
y = -16.25

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