How would i solve 15=x+7

15-7=8

Step-by-step explanation:

you will have to use inverse operation

15=x+7

Step-by-step explanation:

This is a basic algebra problem. In order to solve this you have realize what kind of equation this is. This equation is asking for both sides to be equal. In order to do that you have to subtract 7 from 15 to find what x equals.

15=x+7

-7    -7

15-7=x+7-7

8=x

This means that in this equation, x equals 8. Plug it back in to check.

15=8+7

15=15. This works perfectly!!!

Let me known if you need more information and i'll try my best to answer!

3.4 pizzas

step-by-step explanation:

given is a scatter plot showing number of pizzas sold during weeks for different issues of coupon

y represents number of pizzas sold and x number of coupons issued

y is marked verticaly and x horizontally

the trend line is given as

y =3.4x+43

this says that even when no coupon is issued pizzas sold will be 43

and rate of change of pizza sold for 1 unit of coupon = slope = 3.4

i.e. when x increases by 1 unit y increases by 3.4 units

hence for each additional coupon issued 3.4 pizzas more will be sold

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.