1. -50(-3m+10)=-200
150m – 500 = – 200
150m = – 200 + 500
150m = 300
m = 2
2. -62(2n+22)=-1860
– 124n – 1364 = – 1860
– 124n = – 1860 + 1364
-124n = -496
n = 4
3. -11z+52=41z
– 11z – 41z = – 52
-52z = -52
z = 1
4. 14(3x-5)=19x-1
42x – 70 = 19x – 1
42x – 19x = – 1 + 70
23x = 69
x = 3
5. 88+99b=187+b
99b – b = 187 – 88
98b = 99
b = 99/98
b =1,01020408163
6. 77+100x=177+x
100x – x = 177 – 77
99x = 100
x = 100/99
х=1,0101010101
7. 38-5aa=34-4a
– 5a + 4a = 34 – 38
-a = -4
a = 4
8. 26-4z=28-2z
– 4z + 2z = 28 – 26
-2z = 2
z = -1
9. 10+9a=26+a
9a – a = 26 – 10
8a = 16
a = 2
10. -20(-10x+4)=120
200x – 80 = 120
200x = 120 + 80
200x = 200
x = 1
1. -50(-3m+10)=-200
150m – 500 = – 200
150m = – 200 + 500
150m = 300
m = 2
2. -62(2n+22)=-1860
– 124n – 1364 = – 1860
– 124n = – 1860 + 1364
-124n = -496
n = 4
3. -11z+52=41z
– 11z – 41z = – 52
-52z = -52
z = 1
4. 14(3x-5)=19x-1
42x – 70 = 19x – 1
42x – 19x = – 1 + 70
23x = 69
x = 3
5. 88+99b=187+b
99b – b = 187 – 88
98b = 99
b = 99/98
b =1,01020408163
6. 77+100x=177+x
100x – x = 177 – 77
99x = 100
x = 100/99
х=1,0101010101
7. 38-5aa=34-4a
– 5a + 4a = 34 – 38
-a = -4
a = 4
8. 26-4z=28-2z
– 4z + 2z = 28 – 26
-2z = 2
z = -1
9. 10+9a=26+a
9a – a = 26 – 10
8a = 16
a = 2
10. -20(-10x+4)=120
200x – 80 = 120
200x = 120 + 80
200x = 200
x = 1