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3 years ago

10

Find the value of 21 + 4(32 - 5). 37 25 100

2 answers:

neonofarm [45]3 years ago

7 0

Answer:

129

Step-by-step explanation:

21 + 4 (32 - 5)

using the distributive property

21 + 4× 32 - 4 × 5

21 + 128 - 20

129

Brainliest is appreciated

bija089 [108]3 years ago

4 0

21+4(32-5)=448

I think it’s 448

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3 years ago

5) –2x – 9y=-25<br> -4x – 9y=-23

notka56 [123]

Answer:

(-1,3)

Step-by-step explanation:

–2x – 9y=-25

-4x – 9y=-23

Multiply the second equation by -1

4x + 9y=23

Add this to the first equation

–2x – 9y=-25

4x + 9y= 23

-----------------------

2x = -2

Divide each side by 2

2x/2 = -2/2

x = -1

Now we need to find y

4x+9y = 23

4(-1) +9y = 23

-4 +9y = 23

Add 4 to each sdie

-4+4 +9y = 23+4

9y = 27

Divide each side by 9

9y/9 = 27/9

y =3

5 0

3 years ago

Read 2 more answers