1. 7r – 7 = 2r + 18
r = –5
r = 5
r = 2.2
r = 1.2
2. 2x + 12 = 18 – x
x = 3
x = 10
x = 6
x = 2
3. 8x – 3 = 15x + 18
x = –3
x = 3
x = 2.1
x = .9
4. 6y – 6 = 4y + 16
y = 2.2
y = –2.2
y = 11
y = 5
5. 3(x – 4) = 5(x + 2)
x = 11
x = –11
x = 1
x = –1
the answers are
b
d
a
c
b
1. r = 5
2. x =2
3. x = -3
4. y = 11
5. x = -11
ok so check my answers:
1. b
2. d
3. a
4. c
1.b
2.d
3.a
4.c
5.b
6.b
7.c
Thanks! 100% correct
"ur mom" Is 100% correct thanks 👍
these are all basically the same. Here's #5. It should help you on the others:
3(x-4) = 5(x-2)
expand to remove parentheses:
3x-12 = 5x+10
collect the x stuff on one side:
-2x = 22
divide by the coefficient of x: -2
x = -11
finally, check your answer!
3(-11-4) = 5(-11+2)
3(-15) = 5(-9)
-45 = -45
if you get stuck on the others, come on back and show how far you got.