Answer:
3
8
+
4
0
+
1
2
0
=
3
4
−
7
(
2
0
−
1
9
)
{\color{#c92786}{38x}}+40+{\color{#c92786}{120x}}=34x-7(20-19x)
1
5
8
+
4
0
=
3
4
−
7
(
2
0
9
)
Step-by-step explanation:
Answer:
x = 20
Step-by-step explanation:
[tex]38x+40+120x=34x-7(20-19x)\\\rule{180}{0.5}\\\text{Simplifying the left:}\\\\38x+120x+40\\\\158x + 40\\\\\text{Simplifying the right:}\\\\34x-7(20-19x)\\\\34x - 140 + 133x\\\\34x + 133x - 140\\\\167x - 140\\\rule{180}{0.5}\\158x + 40 = 167x - 140\\\\158x + 40 - 40 = 167x - 140 - 40\\\\158x = 167x - 180\\\\158x - 167x = 167x - 167x - 180\\\\-9x = -180\\\\\frac{-9x}{-180}\\\\\boxed{x = 20}[/tex]
Hope this helps.
