Question

solve the equation and check the answer 7 x + 15 is equal to 3 X + 31​

Answer 1

Here , 7x+ 15 = 2x+ 31

(putting constants and variable on different sides )

=> 7x- 3x = 31-15

=> 4x= 16

=> x= 16/4

=> x=4

checking :

put value of x in equation

7x+15=2x+31

=>( 7×4)+15=(3×4)+31

=> 28+15 = 12 + 31

=> 43=43

so , the answer is correct

Answer 2

Answer:

7x+15x=3x+31

7x-3x=31-15

4x=16

x=16/4

x=4

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