Which linear equations have an infinite number of solutions? check all that apply.

(x – ) = (x – left-parenthesis x minus startfraction 3 over 7 endfraction right-parenthesis equals startfraction 2 over 3 endfraction left-parenthesis startfraction 3 over 2 x endfraction minus startfraction 9 over 14 endfraction right-parenthesis.)
8(x + 2) = 5x – 14
12.3x – 18 = 3(–6 + 4.1x)
(6x + 10) = 7(startfraction one-half endfraction left parenthesis 6 x plus 10 right-parenthesis equals 7 left-parenthesis startfraction 3 over 7 x minus 2 right-parenthesis. x – 2)
4.2x – 3.5 = 2.1 (5x + 8)