$5x + 7 - 2( - 8x - 1) = 7(x - 1) \\ 5x + 7 + 16x + 2 = 7x - 7 \\ collecting \: like \: \: terms \: \\ 5x + 16x - 7x = - 7 - 2 - 7 \\ 14x = - 16 \\ divide \: both \: side \: by \: 14 \\ \frac{14x}{14} = \frac{ - 16}{14} \\ x = - \frac{ 8}{7}$

8 0

3 years ago

It’s easy please help please please

lions [1.4K]

Step-by-step explanation:

4x - 2y = 8

y = -2

4x -2(-2) = 8

4x + 4 = 8

4x = 4

x = 1

5 0

2 years ago

Joanna runs at an average speed of 7.5km/h. She runs 15km every day. What time did

yan [13]

Avg. speed Joanna runs: 7.5km/h
how much she runs everyday: 15km

15km/7.5= 2 hours of running time everyday

She leaves at 8:30, comes back at ?
8:30+ 2:00= 10:30

Joanna arrives back at 10:30a.m.

8 0

3 years ago

Read 2 more answers

Betsy is collecting coins she has 25quarters 3times as many nickels than quarters and2times as many pennies than nickels how man

babunello [35]

YEAH I CAN TELL YOU A LAME LOL

4 0

3 years ago