2(3x - 7) + 4 (3 x + 2) = 6 (5 x + 9 ) + 3

how will solve it?

well you first multiply it out:

6x-14+12x+8=30x+54+3
you combine like terms

18x-6=30x+57
-12x=63
x=-63/12

6x-14+12x+8=30x+57=-12x=63=x=63/-12