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Pepsi [2]
3 years ago
10

X square + 3 x minus 9 ÷× square - 9 X + 3 ​

Mathematics
1 answer:
olganol [36]3 years ago
8 0

Answer:

1

Step-by-step explanation:

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Helpppppppppppp plzzzzzzzzzzzzzzzzzz!
prisoha [69]

Answer: F=140

Step-by-step explanation:

720=(x-60)+(x-40)+(x-20)+130+120+110

720-130-120-110=3x-120

360=3x-120

360+120=3x

480=3x

480/3=x

160=x

F=160-20

Next problem

102+31+x=180

133+x=180

x=180-133

x=47

7 0
3 years ago
−5x+2y=9<br> y=7x<br> ​x=<br> y=
Serhud [2]

- 5x+2y=9 \\ y=7x

We know that y=7x, so we just need tu put it into the 1st equation

- 5x + 2 \times 7x = 9 \\  - 5x + 14x = 9 \\ 9x = 9 | \div 9 \\ 9x \div 9 = 9 \div 9 \\ x = 1

So we found x. Now we can find y

y = 7 \times 1 \\ y = 7

Answer:

x=1, y=7; or (1;7)

4 0
3 years ago
Practice
Mrrafil [7]

Answer:

1. -5y + 2y = -3y

2. -8r - 16 + 6r - 12

3. -8r - -16 + 6r - 12

4. -8r - -16 + 6r - 12

5. 2m +13

Step-by-step explanation:

why is there 2 of the same

3 0
3 years ago
3x+42=3x+21 can be made into an equivalent equation.
Mumz [18]

Answer:there is no solution

Step-by-step explanation:

4 0
4 years ago
6z + 10 = -2 How should I solve it? It's from Simple Equations
worty [1.4K]

Answer: z = -2

Step-by-step explanation:

6z + 10 = -2

add 10 on both sides

6z = -2 -10

6z = - 12

divide 6 on both sides

z = -2

5 0
3 years ago
Read 2 more answers
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