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goldfiish [28.3K]
3 years ago
7

Solve using the substitution method -2x +y=4 y=3x+1​

Mathematics
2 answers:
Rainbow [258]3 years ago
6 0

Answer: (3, 10)

Step-by-step explanation:

X=3 y=10

Tomtit [17]3 years ago
5 0

Answer:

x = 3

y = 10

Step-by-step explanation:

Equation (1) : -2x + y = 4

Equation (2) : y = 3x + 1​

Substitute (2) into (1):

-2x + (3x + 1) = 4

-2x + 3x + 1 = 4

x + 1 = 4

x = 3

Sub x = 3 into (2):

y = 3(3) + 1

y = 10

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Step-by-step explanation:

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Given the function f(x)=4x^8+7x^7+1x^6+1 What is the value of f(−2)?
qwelly [4]
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7 0
4 years ago
Please help me answer this question​
sukhopar [10]

Answer:

her first mistake was on line 3.

line 1: 80 + [2(3 1/2 + 1 1/2)]

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line 3: 80 + 10

line 4: 90

Step-by-step explanation:

on line 3 she added 80 + 2, but she should have multiplied 2 by 5. the correct steps would be:

line 1: 80 + [2(3 1/2 + 1 1/2)]

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line 4: 90

4 0
3 years ago
Dan says 3/5 is the same as 3.5 is he correct
lys-0071 [83]
No, 3/5 is equal to 0.6
6 0
3 years ago
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