Question

4.5x-6.9=30.4.8+7x=6.9.0.8x-1.2*4=3.2.

Answer 1

4.5x-6.9=30 4.8+7x=6.9 0.8x-1.2X4=3.2

4.5x=30+6.9 7x=6.9-4.8 0.8x-4.8=3.2

4.5x=36.9 7x=2.1 0.8x=3.2+4.8

x=8.2 x=0.3 0.8x=8

x=10