Question

Check the first three equations carefully and find the value of forth equation?

Answer 1

6+4×5 = 26 is the answer
Because, number of branch in x-mas tree gives its number,
Number of spikes in steering wheel tells it's number,
Star has value 2.

All these are evident from equations:
3 x-mas+star = 21
=》1 x-mas+star = 7
x-mas tree has 5 stepped branches, so it's value is 5 giving value 2 to star.
In equation 2, substituting known things tells steering wheel value = Number of spikes in side

Answer 2

3Stars+3Trees=21 ----------------------(1)

3S+3T=21
S+T=7
2Sreers+S+T=19
2Sr+7=19
2Sr=19-7=12
Sr=6

S+Sr+S+T=15
but S+T=7,Sr=6
S+6+7=15
S=15-13=2
S=2
Then S+T=7
T=5
S=2,Sr=6,T=5
T+2S*Sr=?
5+2*2*6=29

S=2,Sr=6,