1. An oil painting is 16 years older than a watercolor by the same artist. Their combined ages are 22 years. Find the age of each.
F-D process

a) Oil painting= watercolor +16

b) Oil painting + Watercolor=22

2 equations with 2 variables OK

we can replace a) in b) and get:

watercolor +16 + watercolor =22

which gives :

2 watercolor =22-16=6

So Watercolor=3 and Oil painting=16+3=19

Step-by-step explanation:

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step-by-step explanation:

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1