2 years ago

Help me please as soon as possible

Mathematics

2 answers:

Stella [2.4K]2 years ago

6 0

90+31= 121
3x-1+121=120
3x+120=180
-120
3x=60
Divide by 3 on both sides
X=20

Nookie1986 [14]2 years ago

4 0

X=15

90+31+3x-1=180
121+3x-1=180
120+3x=180
3x=60
X=15

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