Answer:
ok so
Step-by-step explanation:
8x + 7 + 7x - 2=90=>
=> 15x+5= 90
=> 15x=90 - 5=>
=> 15x =85= x= 5.6666...
Hey there!
“8x + 7 + 7x – 2 = 90”
• FIRST: COMBINE your LIKE TERMS
(8x + 7x) + (7 – 2) = 90
‘8x + 7x = 15x’
‘7 – 2 = 5x’
“15x + 5 = 90”
• SECOND: SUBTRACT by 5 on BOTH SIDES
15x + 5 – 5 = 90 – 5
CANCEL out: 5 – 5 because that gives you 0
KEEP: 90 – 5 because it helps us solve for your x-value
‘90 – 5 = 85’
NEW EQUATION:
“15x = 85”
• THIRD: DIVIDE by 15 on BOTH SIDES
15x/15 = 85/15
CANCEL out: 15/15 because that equals 1
KEEP: 85/15 because it gives us our x-value
Reduce: 85/15 and it gives us: x
Answer: x = 17/3 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Answer: 60 decrease or 150 decrease
Step 1 = 9
Step 2 = 4
Step 3 = 25
t=2Q-sr/r
We are to make t the subject of formula from the given question
Q=r/2 (s+t)
Q=Sr+tr/2
Cross multiply
2Q=Sr+tr
2Q-sr=tr
