Question

Add the following question​

Answer 1

Answer:

1)5x+7x+(-6)x

=12x-6x

=18x

Answer 2

Answer:

i) 5x+7x-6x

=12x-6x

=6x

$ii)\\=5a^{2}b-8a^{2}b+7a^{2}b\\\\=12a^{2}b-8a^{2}b\\=4a^{2}b$

iii) x-3y+4z+y-2x-8z

= -x-2y-4z

$iv)\\=2x^{2} -3y^{2}+5x^{2} +6y^{2} \\=7x^{2} +3y^{2}$

$v)\\5x-2x^{2} -8+8x^{2} -7\\6x^{2} +5x-15$

Step-by-step explanation:

HOPE IT HELPS YOU OUT.....