Question

Please solve it fast​

Answer 1

Step-by-step explanation:

$(a) \\ 3m \div 12 - 2 = 4 \\ 3m \div 12 = 4 + 2 = 6 \\ 3m = 6 \times 12 = 72 \\ m = 72 \div 3 = 24$

$(b) \\ 90 - 2y = 12 \\ - 2y = 12 - 90 \\ - 2y = - 78 \\ y = - 78 \div - 2 = 39$

any problems??

Answer 2

Step-by-step explanation:

a- 3m =4+2*10

3m=60

m=60/3=20

B -2y=12-90

-2y=-78

y=78/2=39

C 5x-2x=8+7

3x=15

x=15/3=5

D 3x/2=11/2-1

3x/2=9/2

3x=9/2*2

3x=9/3

x=3

E 3m=54-9

3m=45

m=45/3=15

F 6z=-2-10

6z=-12

z=-12/6= -2

G 20= 56-4y+20

20=76-4Y

4Y=76-20=56

Y=56/4=14

H 3A=3-3/4=9/4

a=9/4*3=27/4

4x/7=12

4x=12*7=84

x=84/4=21

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