(42) 60+x=70(43) 8x-5x=63 (44) 18.7÷x=1.1 (45) (2.3x-1.9)÷5=3.3(46) 14x-3x-30=102 (47) x+82=121 (48) x+49=127(49) 8x-2x+7=25 (50) 8.5+x=10.4 (51) 5.3x+0.6x=23.6(52) 18x-6x+40=64 (53) 26x-6×10=96 (54) 14x-6x+1...