Its -20 but how? pls helppp. ill give brainliest

w-10=2(w+5)

w-10=2w+10

w-2w=10+10

-w=20

w=-20

it's -20

Step-by-step explanation:

-20 - 10 = -30 because of the negative signs

2(-20+5) = 2(-15) it's -15 as - and + = - and 20-5 is 15 ww then put the negative as -20 is the bigger number so ww have to put the sign of it, that will then be -15

at this point it's -30 = 2(-15)

2 x -15 is -30

-30 = -30

70 years.

step-by-step explanation:

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465