If x =2 find the value of q in the equation 3x-4=x+q

Mathematics

1 answer:

Effectus [21]3 years ago

5 0

Step-by-step explanation:

given x=2

and the equation

$3x - 4 = x + q$

to find the value of q , you need to make q the subject in the equation as shown below

q= 3x-x -4

q=2x-4

but x= 2

so just substitute the value of x in the equation for the q

$q = 2(2) - 4$

q=4-4

q=0

therefore the value of q is 0

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on Monday you buy two apples and three oranges for a total of $14 on Tuesday you buy four apples and five oranges for $24 what d

exis [7]

Equation=2a+3b=$14
=4a+5b=$24

Multiply the first equation by 4 and the second by 2 to get the value of b....
8a+12b=56 -
8a+10b=48
2b=8
b=$4
If the price of an orange is $4 we can now find the price of an apple by
.................2a+(3*$4)=$14
............2a+12=14........2a=2
a=1
So the cost of an apple is $1 and that of an orange is $4
......Hope it helps you

4 0

2 years ago

3x+6=30 i need some help

goldenfox [79]

Answer:

Step-by-step explanation:

3x+6=30

Get the co-efficient by itself

3x +6=30

-6. -6

3x=24

Divide by 3 on both sides