power and exponent . Simplify 3x+7y-2x+9y. write in steps
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Answer:
Simplifying
3x + 7y + 2x + 9y = 0
Reorder the terms:
3x + 2x + 7y + 9y = 0
Combine like terms: 3x + 2x = 5x
5x + 7y + 9y = 0
Combine like terms: 7y + 9y = 16y
5x + 16y = 0
Solving
5x + 16y = 0
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-16y' to each side of the equation.
5x + 16y + -16y = 0 + -16y
Combine like terms: 16y + -16y = 0
5x + 0 = 0 + -16y
5x = 0 + -16y
Remove the zero:
5x = -16y
Divide each side by '5'.
x = -3.2y
Simplifying
x = -3.2y
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