Can some one solve these 5 math problems I need?

Question

1.9h + 2< -79 (inequality)

2. 4y + 228 = 352 (equation)

3.12y = 132 (equation)

4.Given the formula K = LMN, what is the formula for M?

5.4m + 9 + 5m - 12 = 42. (equation)

Answer 1

The basic concepts are the same for all of them: isolate the variable

#1 subtract 2 then divide by 9
#2 subtract 228 the divide by 4
#3 divide by 12
#4 divide by LM

Answer 2

1.) 9h + 2 < -79
9h<-81
h<-9

2.) 4y + 228 = 352
4y = 352-228
4y = 124
y = 31

3.) 2y = 132
y = 66

4.) Given the formula K = LMN, what is the formula for M?

M = K / (LN)

5.) 4m + 9 + 5m - 12 = 42
4m + 5m = 42 + 12 - 9
9m = 45
m = 5

Answer 3

1. 9h +2<-79

9h +2 -2< -79 - 2
9h < - 81
h < -81/ 9
h < - 9
work inequality like regular equation''

2. 4y + 228 = 352

add the additive inverse of 228 to both sides of the eauation'

4y + 228 - 228 = 352 - 228

4y = 124
divide both sides by 4

4y / 4 = 124 /4

y = 31

3. 12y = 132

divide both sides by 12

12y / 12 = 132 / 12

y = 11

4. k = LMN

divide both sides by LN

K / LN = LMN /LN

K / LN = M

M= (K / LN) K Divided by LN

5. 4m + 9 +5m - 12 = 42
collect like terms first:

4m + 5m + 9 -12 = 42
combine like terms next

9m - 3 =42
take additive inverse of - 3 on both sides additive inverse means change the signs and add.

9m - 3 +3 = 42 - 3

9m (+/-) 0 = 39
9m = 39
divide both sides by 9

9m / 9 = 39 / 9
m = 39 / 9
reduce as far as possible

m = 13 / 3
reduse further to mixed number

m = 4 & 1/3 (that is 4 and one third)

m= 4 1/3

now go through each step of each problem and lock it in your head so you will remember how to do them.

I am going to leave plugging your answers in to check your work up to you.

Answer 4

1.
9h<-81
h<-9

2.
4y=124
y=31

3.
y=11

4.
M=K/(LN)

5.
9m=45
m=5