(x+10)°+(2x+20)°=180°. I need this solved with work fully shown.( step-by-step ). thanks.
2 answers:
Answer:
x = 50
Step-by-step explanation:
Given
(x + 10) + (2x + 20) = 180 ( remove the parenthesis )
x + 10 + 2x + 20 = 180, that is
3x + 30 = 180 ( subtract 30 from both sides )
3x = 150 ( divide both sides by 3 )
x = 50
Answer:
x°=50°
Step-by-step explanation:
(x+10)°+(2x+20)°=180° (remove parenthesis)
x°+10°+2x°+20°=180°
x°+2x°+10°+20°=180° (addition of variable with variable and constant with constant)
3x°+30°=180°
3x°=180°-30° (on the other side of equality 30 became negative)
3x°=150°
x°=150°÷3° (division by 3)
x°=50°
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