Simplify: (-x + 7y + 8) + (-4x – 7y – 12).
Note
Combine only like terms. The x-coefficients give -1 + (-4) = -5; the y-coefficients give 7 + (-7) = 0; constants give 8 + (-12) = -4. Therefore the simplified expression is -5x - 4.
Simplify: (-x + 7y + 8) + (-4x – 7y – 12).
Combine only like terms. The x-coefficients give -1 + (-4) = -5; the y-coefficients give 7 + (-7) = 0; constants give 8 + (-12) = -4. Therefore the simplified expression is -5x - 4.