2x + 15 = 82 – 9
What is the value of x that makes the equation true

Step-by-step explanation:

Here you go mate

Step 1

2x+15=82-9  Equation/Question

Step 2

2x+15=82-9  Simplify

2x+15=73

Step 3

2x+15=73  Subtract

2x=58

Step 4

2x=58  Divide by 2

answer

x=29

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.