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3 years ago

Consider the equation 4+2(5x-8) = ax +b.

Mathematics

2 answers:

CaHeK987 [17]3 years ago

7 0

Answer:

a= 10

b = -12

Step-by-step explanation:

4+2(5x-8) = ax +b.

4+10x-16 = ax + b

4-16+10x = ax+b

-12+10x= ax+b

10x+(-12)= ax+b

ax= 10x

a= 10

b = -12

vlada-n [284]3 years ago

5 0

Answer:

a = 10, b = -12

Step-by-step explanation:

4+2(5x-8) = ax +b

4 + 10x - 16 = ax + b

10x - 12 = ax + b

Infinitely many solutions when:

a = 10

b = -12

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nikitadnepr [17]

So you know that:

2x+y=14+y
and
5x-y=x+13y

Here you have two equations with two unknown variables:
If you isolate x from the second equations you get:
x=(7/2)y
Insert that in the first equations and solve for y:
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Insert that value for y in one of the two equations (i chose the first):
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x=7

Therefore x=7

Hope that helped.

Actually you could start with isolating x, and then insert that in one of the two equations.

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