Question

8.5×2-8x＝15.4 4×（90-6x）＝48 12x+

Answer 1

8.5*2-8x=15.4

8x=15.4+8.5*2

8x=15.4+17

8x=32.4

x=4.05

4*(90-6x)=48

90-6x=48/4

90-6x=12

6x=12+90

6x=102

x=17

12x+24x-15x=147

21x=147

x=147/21

x=7