Given g(x) = 2x + 1, solve for x when g(x) = 7. I hate algebra and really don’t get it so plz help

x=3

Step-by-step explanation:

7

=

2

+

1

7=2x+1

7=2x+1

Solve

1

Subtract

1

1

1

from both sides of the equation

7

=

2

+

1

7=2x+1

7=2x+1

7

−

1

=

2

+

1

−

1

7{\color{#c92786}{-1}}=2x+1{\color{#c92786}{-1}}

7−1=2x+1−1

2

Simplify

3

Divide both sides of the equation by the same term

4

Simplify

Solution

3

=

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

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step-by-step explanation: