Question

determine 2×-5=×+1 2×+3=×+4 5×+7=4×+10 4×-7=8×-2

Answer 1

2x-5=x+1
2x-x=1+5
x=6

2x+3=x+4
2x-x=4-3
x=1

5x+7=4x+10
5x-4x=10-7
x=3

4x-7=8x-2
4x-8x=-2+7
-4x=5
(-1)
4x=-5
x=-5/4