PEMDAS
(4+3)*2
14
x+5=7
x+2
2x+5x
7x
3*21
63
83/2
41 R1
2*5-(3*2)
4
x-3=8
x=11
6x
4*45
180
94/5
18 R4
(1+1)2-2
2
2x-4=6
x=5
3x+2x+4y-3y
5x+y
5*63
315
324/4
81
(7-2)+5*3
20
3x+3=6
x=1
14x-3x+5y-2y
11x+3y
2*428
856
419/3
139 R2
(12/2)+4*3
18
5x-1=9
x=2
10x+3y+4x+2y
14x+5y
6*324
1944
819/6
136 R3