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Anastaziya [24]
3 years ago
14

Help please?????????

Mathematics
1 answer:
4vir4ik [10]3 years ago
5 0
A(2,5) that is the answer / coordinates
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5x+y=-10 4x-7y=-8 Substition Method (Show it step by step please!)
Fynjy0 [20]

\left\{\begin{array}{ccc}5x+y=-10&|\text{subtract 5x from both sides}\\4x-7y=-8\end{array}\right\\\left\{\begin{array}{ccc}y=-5x-10&|\text{substitute to the second equation}\\4x-7y=-8\end{array}\right\\\\4x-7(-5x-10)=-8\qquad\text{use distributive property}\\\\4x+(-7)(-5x)+(-7)(-10)=-8\\\\4x+35x+70=-8\qquad\text{subtract 70 from both sides}\\\\39x=-78\qquad\text{divide both sides by 39}\\\\\boxed{x=-2}\\\\\text{Put the value of x to the first equation}\\\\y=-5(-2)-10\\\\y=10-10\\\\\boxed{y=0}

Answer:\ \boxed{x=-2\ and\ y=0}

3 0
3 years ago
Read 2 more answers
Please help! ASAP...
zmey [24]

Answer:

56

Step-by-step explanation:

@[email protected]

5 0
3 years ago
Which value of x makes the equation -5(x-3)=-25​
Mnenie [13.5K]

Answer:

x=8

Step-by-step explanation:

-5(x-3)=-25

Divide each side by -5

-5/-5(x-3)=-25/-5

x-3 = 5

Add 3 to each side

x-3+3 = 5+3

x = 8

4 0
3 years ago
Read 2 more answers
Matilda has 19 nickels, 43 dimes, 24 quarters, and 14 fifty-cent pieces. How
Kobotan [32]

Answer:

1125 cent or 11.25

Step-by-step explanation:

19*5=95 43*10=430

7 0
3 years ago
56 is decreased to 11
nexus9112 [7]

Answer:

56 decreases to 11 because 45 was subtracted from it.

56-45=11


4 0
3 years ago
Read 2 more answers
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