Answer:
a. 4a−8b+4c+70
b. x=2
Step-by-step explanation:
[tex]a. \: (7a−5b+4c)−(3a+3b−70)[/tex]
[tex]7a−5b+4c−(3a)−(3b)−(−70)[/tex]
[tex]7a−5b+4c−3a−3b+70[/tex]
[tex]4a−5b+4c−3b+70[/tex]
[tex]4a−8b+4c+70[/tex]
b. Let's solve your equation step-by-step.
5x+1=2x+7
Step 1: Subtract 2x from both sides.
5x+1−2x=2x+7−2x
3x+1=7
Step 2: Subtract 1 from both sides.
3x+1−1=7−1
3x=6
Step 3: Divide both sides by 3.
[tex] \frac{3x}{3} = \frac{6}{3} [/tex]
x=2
Hope it is helpful....
