4x+7=31
13x3
39
−2×7×4
-56
3x−5=16
7
14x5
70
8×−3
-24
6x+9=45
6
23x7
161
-(-5)x2
10
2x−8=12
32x12
384
-(-8)x-3
5x+4=29
5
345x67
23115
(-9)x(-7)
63
Press F11 Select menu option View > Enter Fullscreen for full-screen mode