计算题、解方程 (1) (2) (3) 2(x-3)-3=19-5(2x-4) (4) 答案:解:原式=6+3+2÷19=6+3+2×9=6+3+18=27.
解:原式=-1-0.5×14×4--1=-1-12×14×5=-1-58=-138.
解:2x-6-3=19-10x+20 2x+10x=19+20+6+3 12x=48 x=4
解:5x-10x-15=1 25x-(10x-1)=5 25x-10x+1=5 15x=5-1 15x=4 x=415Getting a right job can be difficult ____the students ___prepared to deal with the job interview. A.if ; won’t be B.unless; are C.unless ; will be D.if;are