Question

what is 7+3(x+9)/2=15?
Thanks

Answer 1

what is x? :)

Answer 2

and if you have some spare time could you also help me with
7(5x+8)-9=40

Answer 3

7+3(x+9)/2=15 mulitply both sides by 2
7+3(x+9)=30 add 7&3
10(x+9)=30 divide both sides by 10
x+9=3 subrtact 9 from both sides
x=-6

Answer 4

7(5x+8)-9=40 add 9 on both sides
7(5x+8)=49 divide 7 on both sides
5x+8=7 subtract 8 on both sides
5x=-1 divide by 5
x=-1/5

Answer 5

@heatherfeather Your answer is incorrect. It's isn't -6. You are supposed to distributive 3 to (x + 9)

Answer 6

@micahwood50
ah okay. so it would be:
7+3(x+9)=15 muliply both sides by 2
7+3(x+9)=30 distribute the 3 to the x&9
7+3x+9=30 add the 7&9
16+3x=30 subtract 16 from both sides
3x=14 divide by 3
x= 4.7

Answer 7

Thank you heatherfeather for helping me and thank you micahwood50 for helping heatherfeather. :D You guys were a great help.