Question

4-3x=19+8x      x+1=7-x       3x-(-3x+4)=-x-12-3x          4(0,5x+4)=8(4+x)

Answer 1

$1.;;4-3x=19+8x\-3x-8x=19-4\-11x=15\x=-frac{15}{11}=-1frac4{11}\ 2.;;x+1=7-x\x+x=7-1\2x=6\x=6:2=3\ 2.;;3x-(-3x+4)=-x-12-3x\3x+3x-4=-4x-12\ 6x-4=-4x-12\6x+4x=-12+4\10x=-8\x=-8:10=-0,8\ 4.;;4(0,5x+4)=8(4+x)\2x+16=32+8x\2x-8x=32-16\-6x=16\x=-frac{16}{6}=-2frac46=-2frac23$