Question

plz tell me the answer of this question l know this is sleeping time but l need the answer of this question​

Answer 1

Answer:

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1.

(1) 9m=81 ,m=9

• 9(9)=81. (m=9) (given)

2. 2a+4=0, a = -2

• 2(-2)+4=0 ,( a= -2) (given)

-4+4=0

Yes,This Values are solutions of that euations

2.

(1) 2m+7=9

2m=9-7

2m=2

m=1

(2) 3x+12=2x-4

3x-2x= -4-12

x= -16

(3) 5(x-3)=3(x+2)

5x-15=3x+6

5x-3x=6+15

2x=21

x=21 /2 or 10.5