Question

Tentukan A + B

1.A : 2x - 7
B : -x+8
2. A: 10x - 3
B : -5+4
3. A : 6-8x
B : 2x + 3

Answer 1

1. A+B = (2x-7) + (-x+8) = x+1
2.A+B = (10x-3)+(-5x+4)
= (10x-5x) + (-3+4)=5x+1
3.A+B= (6-8x)+(2x+3)
= (-8x+2x) +(6+3)=-6x+9