Question

simplify the following by adding the like terms. a) 3x + 7y - 2x + 9y3x+7y−2x+9y b) a^{2} - 3a + 4a - 8a^{2}a2−3a+4a−8a2 c) - 3x^{2} + 7xy - 10 + 6x^{2} - xy + 8−3x2+7xy−10+6x2−xy+8 d) 3ab + 6bc - 9ac + 10 - 10bc + 2ab + ac3ab+6bc−9ac+10−10bc+2ab+ac ​

Answer 1

Answer:

a) 3x +7y-2x+9y3x+7y-2x+9y

Step-by-step explanation:

3x-2x-2x+7y+7y+9y+9y3x

3x-4x +14y +9y +9y3x

-x +23y+9y3x