2x+10+3x+30=180

I just need the explanation how to do it

Step-by-step explanation:

2x + 10 + 3x + 30 = 180

Add like terms

5x + 40 = 180

5x = 180 - 40

5x = 140

x = 140 / 5

x = 28

hope it helped

(2x + 3x )+(10 + 30)= 180

5x + 40 = 180

5x = 180 - 40

5x = 140

x = 28

rx and sx

step-by-step explanation:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2